Bulk Email Services: 12 Picks for Successful Mass Campaigns

Finding the right bulk email service for mass email campaigns shouldn’t be hard, right?

I’ve been there, testing countless platforms, watching open rates plummet, and hitting unexpected sending limits right when I needed them most. After years of trial and error, I’ve learned that not all bulk email services are the same. Some will charm you with flashy features but eventually leave you stranded when you actually need to deliver bulk emails regularly.

That’s why I put together this guide—to save you from the headaches and those “why did my bulk email campaigns end up in spam?” moments that keep marketers up at night.

Quick Comparison of Top Bulk Email Services

If you’re in a hurry and want to quickly glance over the available bulk email services, I’ve got you covered. Check this email service comparison table of the top bulk email providers:

Tool	Free Plan	Best for	Key Advantage
Sender	15,000 emails/month to 2,500 subscribers	SMBs, Ecommerce stores	Most generous free plan with automation and segmentation included
Omnisend	500 emails/month to 250 contacts	Ecommerce brands, Shopify users	Ecommerce-focused features like product pickers and automation templates
Mailtrap	3,500 emails/month to 100 contacts	Developers, QA teams	Reliable transactional email testing and deliverability insights
GetResponse	2,500 emails/month to 500 contacts	Small businesses	Robust email automation and landing page features
Brevo	300 emails/day (9,000/month), unlimited contacts	Startups, Transactional email senders	Built-in CRM and unlimited contacts even on free plan
Mailchimp	1,000 emails/month to 500 contacts	Creatives, Local businesses	Built-in design tools and AI-generated content assistant
Mailjet	6,000 emails/month (200/day), unlimited contacts	Marketing agencies, Product teams	Real-time collaboration on emails and good deliverability
Constant Contact	No free plan (14-day free trial only)	Nonprofits, Event marketers	Event marketing tools and surveys built-in
ActiveCampaign	No free plan (14-day free trial only)	Mid-sized businesses, B2B organizations	Machine learning engine and advanced automation
HubSpot	2,000 emails/month, 1 million contacts (on CRM)	B2B SaaS, Service-based businesses	Robust free CRM integration and lead management features
Mailgun	~3,000 emails/month	Developers, high-volume senders	Powerful API and high deliverability for transactional and marketing emails
SendGrid	No free plan (60-day free trial)	High-volume senders	ISP-level tracking, comprehensive analytics

Why You Need a Dedicated Bulk Email Service

Have you ever reached Gmail’s 500-email daily limit just as your mass email campaigns start performing? Well, you’ve firsthand experienced why regular free accounts aren’t up for the task of serious business growth.

Here’s what you need to keep in mind  when you try to go beyond simple mass:

• ​​Avoid spam filters & blacklists. When using platforms not designed for bulk emailing, your emails are more likely to land in spam folders or get flagged by most email clients. Using a professional mass email service ensures compliance with industry standards, protecting your sender reputation.
• Ensure high deliverability. Non-specialized platforms often struggle with email deliverability, leading to emails getting stuck in spam or promotions folders. Optimizing email infrastructure and using best practices (e.g., list hygiene) helps ensure your bulk emails consistently reach your audience’s inboxes.
• Send thousands of emails at once. Many email platforms aren’t equipped to handle large-scale sends efficiently, causing delays or throttling. Bulk emailing platforms allow you to send thousands of emails at once, without interruptions, ensuring quick and reliable delivery.
• Track performance with analytics. Without proper tools, it’s hard to measure the effectiveness of your bulk campaigns. Advanced analytics on open rates, click-through rates, and bounce rates help you fine-tune your strategy for better engagement and higher performance.
• Comply with email regulations (GDPR, CAN-SPAM). Email platforms not designed for bulk sends may not have built-in email marketing compliance features, putting you at risk of legal penalties. Using a professional service ensures you follow GDPR, CAN-SPAM compliance and other regulations, maintaining trust with your subscribers.
• Personalize & segment easily. Trying to personalize large email lists manually can be a nightmare, especially with non-bulk platforms. Professional services let you segment your audience based on behavior, demographics, or interests. This is particularly valuable for businesses that rely heavily on subscription forms and have already established a solid audience base.
• Automate follow-ups & sequences. If you’re manually managing follow-ups, you risk sending them too late or not at all. Email automation and subscription forms ensure timely, consistent, and personalized communication, saving you time and keeping your leads nurtured throughout their journey.

Essential Features for Bulk Email Marketing Software

The gap between amateur email blasts and professional campaigns isn’t pure luck—it’s having the right infrastructure. The following seven features separate successful email marketing platforms from expensive disappointments.

High Deliverability Infrastructure

Understanding how to send bulk emails without spam is crucial for maintaining your sender reputation. Look for platforms that use SPF, DKIM, and dedicated IPs to protect your sender reputation. 

Real-time feedback loops with major email providers help quickly identify issues, while automated bounce handling keeps your list clean and ensures better deliverability. This setup should help get your emails delivered fast, reliably, and without causing any alarms.

Email A/B Testing Capabilities

Email A/B testing is the key element for optimizing email campaigns. By comparing two versions of an email—such as different subject lines, CTAs, or layouts—you can identify what resonates best with your audience. 

This data-driven approach helps improve open rates, click-through rates, and conversions. Best practices include: 

• Testing one variable at a time; 
• Ensuring a statistically significant sample size; 
• Analyzing results before making decisions. 

Email Automation Workflows

Manual email campaigns are a thing of the past. Features like split testing, advanced automation, automation builder and flexible timing are some of the non-negotiables. Automated emails triggered by specific user actions (e.g., sign-up or cart abandonment) can drive up to 320% higher revenue than one-off campaigns. 

Essential automation capabilities:

• Welcome sequences. Multi-touchpoint onboarding series for new subscribers;
• Behavioral triggers. Emails activated by website visits, download activity, or specific user actions;
• Cart abandonment recovery. Automated sequences that recapture lost sales opportunities;
• Re-engagement campaigns. Win back inactive subscribers before they become unrecoverable.

Advanced Segmentation & Personalization

Advanced segmentation lets you break your audience into loyal customers and newcomers, or even smaller groups based on behavior, interests, and engagement. 

This tried-and-tested approach makes it easier to personalize your emails for each group, which leads to more relevant content and higher conversions. By targeting specific segments, your emails speak directly to the needs of each subscriber, increasing the chances they’ll engage and take action.

Drag & Drop Email Builder

A professional, mobile-friendly email design is critical—60% of emails are opened on mobile devices, and poor formatting can lead to quick deletion. 

A good drag-and-drop email builder should offer industry-specific templates, a mobile-first design, and simple customization options. Avoid email template editors that require complicated coding or lack flexibility. Look for platforms with a wide variety of email templates—at least 40 customizable options—so you can create professional, engaging emails without the hassle.

Comprehensive Analytics & Reporting

Effective email campaigns rely on detailed reports and analytics, such as heat maps, engagement timing, and revenue tracking. Real-time monitoring helps identify issues instantly, while actionable insights optimize performance, ensuring better results and preventing deliverability problems before they arise.

Core metrics every platform must track:

• Open rates. Industry benchmarks range from 15-25% depending on sector;
• Click-through rates. Healthy campaigns typically achieve 2-5% click rates;
• Bounce rates. Keep below 2% to maintain strong sender reputation;
• Unsubscribe rates. Above 1% indicates content or frequency issues.

List Management & Compliance Tools

Your email list is a valuable asset, but only when strategically organized. Generic mass emails achieve 2-3% open rates and low conversions, while properly segmented campaigns deliver 15-20% open rates and generate 760% more revenue.

What you absolutely need:

• Intelligent import capabilities. Seamless CSV uploads, API integrations, and real-time form synchronization that automatically updates your database;
• Automated regulation compliance. Ensure your email campaigns and signup forms comply with regulations like GDPR and CAN-SPAM;
• Automated list maintenance. Built-in bounce handling, duplicate removal, and suppression management without manual intervention.

12 Best Bulk Email Services for Different Business Needs

While testing various email marketing platforms, I discovered that not every email marketing software performs equally well when it comes to email delivery. In fact, many popular ones have bad deliverability reports and lack key features for successful bulk email campaigns.

That said, I have compiled a list of the 12 best bulk email marketing services for 2025, covering their strengths, real-world use cases, and what sets them apart. Let’s get into it.

Sender — Free Bulk Email Service for 15K Monthly emails

While many mid-sized email marketing platforms seem to falter when it comes to bulk emailing Sender stands out with its robust infrastructure and excellent deliverability. Its generous free plan, then, sweetens the whole deal.

Best for: Ecommerce, bloggers, and small-to-medium businesses (SMBs);
Sender pricing: Starts at $7/month for up to 1,000 subscribers + 12,000 emails/month.
Sender Free plan: Up to 2,500 subscribers + 15,000 monthly emails.

Sender makes it easy to reach your audience and grow your business without unnecessary limitations. It’s a full-featured bulk emailing tool that lets you manage email marketing campaigns efficiently and affordably.

Sender also performs impressively when it comes to getting your messages where they need to go. With a deliverability rate of around 99%, it ensures that nearly all of your emails actually reach subscribers’ inboxes instead of getting lost in spam filters.

Whether you’re running marketing emails, lead nurturing sequences, or newsletters, even the free plan includes solid deliverability, automation options, and up to 15,000 emails per month—no forced upgrades required.

Key Features 

• High deliverability. Achieve up to a 99% deliverability rate, ensuring your bulk emails consistently reach inboxes instead of spam folders;
• Drag-and-drop builder. Design professional email campaigns quickly with an easy-to-use editor—perfect for large-scale sends;
• Smart segmentation. Target specific audience groups within your bulk campaigns to improve engagement and relevance;
• Email A/B testing. Test subject lines, content variations, or send times across large mailing lists to find what performs best;
• Real-time analytics. Track performance metrics like open and click rates instantly to gauge the success of your bulk campaigns;
• Automation workflows. Schedule and manage bulk sends automatically, ensuring timely and consistent delivery to your entire audience.
• Integrations. Connect Sender with your favorite tools—like Shopify, WooCommerce, or Zapier—to sync customer data and streamline marketing efforts.

Explore all features Sender offers — from advanced automations to personalization tools built for effective email marketing.

Pros & Cons

Bottom Line

Sender is a solid choice for growing businesses that want to manage bulk emails with automation, segmentation, and multi-channel messaging—without the high costs of enterprise platforms.

See why businesses choose Sender:

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Omnisend — Ecommerce Bulk Email Service

While many ecommerce email tools feel generic or overly complicated, Omnisend stands out as a platform genuinely built for online stores.

Best for: Ecommerce businesses that want advanced automation and bulk email functionality.
Omnisend pricing: Starts at $11/month for up to 500 contacts.
Omnisend Free plan: Available for up to 250 contacts and 500 emails per month.

During my time with this fine bulk emailer, the setup was seamless—Omnisend instantly pulled in products, customer data, and order history, making it easy to build campaigns that felt directly tied to the store’s activity.

What really stood out were the pre-built automations for ecommerce emailing. Abandoned cart reminders that automatically include product images and prices, post-purchase ‘thank-you’ emails that cross-sell related items. It goes without saying that Omnisend also connects with most ecommerce retailers, such as Shopify, WooCommerce and Magento.

The segmentation and AI-driven recommendations were also impressive—they use real purchase and browsing data to make messages feel relevant without much manual effort. Throw in SMS campaigns and on-site popups, and it becomes a true omnichannel powerhouse built for bulk ecommerce business.

Key Features

• Ecommerce automations. Launch pre-built workflows for abandoned carts, post-purchase follow-ups, and win-back campaigns to drive repeat sales automatically;
• Product recommendations. Use store data to display dynamic, personalized product suggestions that increase average order value;
• Smart segmentation. Target shoppers based on browsing behavior, purchase history, or engagement for more relevant bulk campaigns;
• A/B testing. Optimize subject lines, email layouts, and offers to find what converts best across large ecommerce audiences;
• Revenue-focused analytics. Track sales, conversion rates, and customer lifecycle metrics to measure the direct impact of your bulk email campaigns.

Pros & Cons

Users on G2 and Trustpilot praise Omnisend for its ease of use, powerful ecommerce automations, and seamless Shopify integration. Many highlight its “super user-friendly” interface and how quickly they could set up “welcome emails, cart reminders, and post-purchase workflows” without coding. 

Bottom Line

Omnisend is a smart pick for ecommerce brands aiming to boost revenue through bulk email campaigns, built-in automations, and high engagement segmentation—all with minimal setup and a strong focus on sales.

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Mailtrap — Reliable Transactional Email Platform for Testing and Delivery

Mailtrap is a developer-friendly platform built to ensure your transactional emails are tested, delivered, and monitored flawlessly before reaching users.

Best for: Developers, QA teams, and SaaS businesses needing a secure environment;
Mailtrap pricing: Starts at $15/month for 10,000 emails;
Mailtrap Free plan: Includes a testing inbox and 3,500 monthly emails.

During my hands-on with Mailtrap, I was impressed by how safely and smoothly it handled email testing. Being able to simulate real sends without hitting actual inboxes made it perfect for staging and QA. 

The sandbox environment lets you preview, debug, and validate every message before launch, while the SMTP relay seamlessly takes over for production once everything’s ready.

I found the spam score checks, HTML validation, and real-time logs especially useful for fine-tuning deliverability (which stayed around 85% at most times) and catching formatting issues early. The team inboxes also make collaboration easy—you can review and comment on test messages together without jumping between tools.

Overall, Mailtrap feels built for developers and SaaS teams who are looking for an affordable bulk email platform.

Key Features

• Safe email testing. Preview and debug emails in a sandboxed environment without reaching real users;
• Transactional SMTP relay. Send high-volume system emails (password resets, alerts, confirmations) securely and reliably;
• Deliverability insights. Track bounces, spam scores, and performance metrics in real time;
• API integration. Seamlessly connect with web apps, CRMs, and backend systems for automated email delivery;
• Shared inboxes. Collaborate across teams to review, approve, and test messages before deployment.

Pros & Cons

Teams value the “real-time tracking and detailed logs” and note that non-engineers can “review emails without dev support,” saving hours each sprint. Some mention wanting “more marketing automation” and “deeper analytics,” but overall—Mailtrap is seen as a dependable, low-latency platform for flawless transactional delivery.

Bottom Line

Mailtrap is the ideal choice for developers and SaaS teams that need to safely test, monitor, and deliver transactional emails with confidence. It’s not a marketing tool—it’s a precision platform for ensuring every message works perfectly before and after deployment.

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GetResponse — Bulk Email Service with Landing Page builder 

While many bulk email tools stop at sending campaigns, GetResponse goes a step further by combining powerful email automation with built-in landing pages, funnels, and webinars.

Best for: Ecommerce stores, SMBs, and enterprises;
GetResponse pricing: Starts at $19/month for up to 1,000 contacts + unlimited emails;
GetResponse Free plan: Includes up to 500 contacts and 2,500 emails/month.

After some time with this finely-tuned email marketing platform, I was convinced of its bulk email sending capabilities. Deliverability hovered around 89% during testing, and performance tracking gave me clear insights into what actually drove clicks and conversions.

I also enjoyed how well automation ties everything together. From welcome sequences to re-engagement workflows, it’s easy to personalize campaigns based on behavior or funnel stage. 

GetResponse’s landing page builder also deserves a mention—drag-and-drop, fast, and loaded with conversion-focused templates that make it easy to turn traffic into sign-ups. Meanwhile, its AI-driven recommendations were another pleasant surprise, analyzing campaign performance and automatically suggesting content tweaks to boost engagement and conversions.

All in all, GetResponse feels polished and purpose-built for marketers who want bulk email power, multichannel engagement (email, SMS, web push notifications), and landing page creation all in one streamlined platform.

Key Features

• Bulk email campaigns. Send high-volume marketing emails with strong deliverability and in-depth analytics;
• Prebuilt ecommerce workflows. Automate product recommendations, cart recovery, and post-purchase emails with plug-and-play templates;
• Native online store integrations. Connect seamlessly with Shopify, WooCommerce, and Magento to sync customer data and drive repeat sales;
• 24/7 chat support. Get instant help from knowledgeable agents anytime you need guidance or troubleshooting;
• Conversion funnel feature. Launch ready-made, goal-specific sales or lead funnels without juggling separate apps.

Pros & Cons

GetResponse is applauded by users for its intuitive interface, smooth setup, and exceptional support. Many highlight its “clean design” and how easy it is to “launch mailing campaigns with structure and visual coherence.”

Bottom Line

GetResponse is ideal for marketers who need more than a bulk email service. With multichannel automation, landing pages, and funnels under one roof, it’s a versatile platform that helps you convert subscribers into customers—without juggling multiple tools.

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Brevo — 300 Daily Sends + Multi-Channel Automation Stack

While many email tools claim to handle automation and scale, Brevo impressed me with how well it manages to combine both—handle bulk email campaigns while letting its automation features sing.

Best for: Small to mid-sized businesses looking for an affordable, all-in-one platform;
Brevo pricing: Starts at $8/month for up to 5,000 monthly emails.
Brevo Free plan: Includes up to 300 emails per day with unlimited contacts.

During my testing period, email deliverability hovered around a respectable 88%—strong for a platform at this price point. There was no lag or throttling (not that I’ve noticed it), and bulk emails seemed to reach their destination without any major hiccups. 

I was equally impressed with its multi-channel automation stack. From one dashboard, I could coordinate bulk emails, SMS, and WhatsApp messages triggered by real customer behavior. The drag-and-drop builder made it easy to launch campaigns quickly, and send-time optimization noticeably improved engagement rates. 

Overall, Brevo feels like a capable, budget-friendly choice for businesses that send bulk emails but don’t want to miss out on automation.

Key Features

• Bulk email sending. Send large-scale campaigns confidently with strong deliverability and real-time performance tracking;
• Real-time deliverability monitoring. Track open rates, clicks, and delivery metrics instantly to ensure consistent inbox placement;
• Drag-and-drop email editor. Design professional bulk campaigns quickly—no coding required;
• Transactional email API. Automate order confirmations, notifications, and other high-volume transactional emails with ease;
• Automation workflows. Schedule and trigger bulk sends based on customer behavior for personalized engagement at scale;
• Multi-channel marketing tools. Coordinate email, SMS, and WhatsApp campaigns from one unified dashboard.

Pros & Cons

Users praise Brevo for its “intuitive drag-and-drop editor,” “clear reporting,” and easy automation that personalizes campaigns at scale. The simple dashboard and built-in CRM make managing bulk emails smooth and efficient. However, some note the platform “can feel slow” with large campaigns, and that templates, analytics, and automation triggers “need more flexibility.” 

Bottom line

Brevo is a platform for brands that need to send bulk emails and run multichannel campaigns with minimal setup. With a solid drag-and-drop editor, automation workflows, and deliverability monitoring, it handles large-scale sends smoothly. While advanced analytics and template customisation may be limited, you can’t complain too much with that price tag.

Looking for more tools like Brevo? Check out this list: 11 Brevo Alternatives: Identifying Best Options

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Mailchimp — Mass Email Service Provider with Templates

Mailchimp has been on the scene for long enough to be called ‘email marketing daddy’. With a pretty solid deliverability, good selection of sleek email templates and competitive automation, there’s no surprise it would end up on this bulk email service provider list.

Best for: Creatives, small businesses, and marketing teams that want beautifully designed campaigns;
Mailchimp pricing: Starts at $13/month for up to 500 contacts;
Mailchimp Free plan: Includes up to 500 contacts + 1,000 monthly emails.

One of the things that immediately stood out during my hands-on was the first impression this bulk email service provider makes. The interface is sleek and beginner-friendly, and the drag-and-drop campaign builder makes designing professional bulk emails fast and frustration-free. 

I was especially impressed by the variety of 250+ customizable pre-built templates—ideal for newsletters, product updates, or large-scale announcements without needing a designer.

Meanwhile, sending bulk campaigns feels smooth, with reliable deliverability and clear reporting to track engagement. Automation and segmentation tools are intuitive, making it easy to personalize bulk sends for different audiences. 

The free plan, though, felt limited—you get only 1,000 monthly emails and no automation. However, once you upgrade, Mailchimp unlocks deeper analytics, A/B testing, and stronger targeting.

Key Features

• Advanced automation workflows. Create personalized email journeys that nurture leads, re-engage customers, and boost conversions automatically;
• Comprehensive audience segmentation. Target subscribers based on behavior, purchase history, or engagement to send more relevant bulk emails;
• Ecommerce tracking. Monitor sales and revenue generated from your bulk emails to measure campaign ROI;
• Great selection of templates. Choose from hundreds of modern, mobile-responsive designs to create professional campaigns in minutes—no design skills required.

Pros & Cons

Users praise Mailchimp for its “user-friendly interface” and “customizable templates,” making it easy to create campaigns and automate tasks like “welcome emails” and “abandoned cart reminders.” One reviewer noted how “Mailchimp increased my confidence in digital marketing” with its step-by-step guidance.

Bottom Line

Mailchimp is an easy-to-use, reliable platform for creating professional email campaigns, perfect for small businesses and creatives. While its free plan offers basic functionality, it becomes pricey as your contact list grows, and some advanced features like automation are locked behind higher-tier plans.

Find out more about this tool: Best Mailchimp Alternatives 2025: 14 Cheaper Tools to Try

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Mailjet — Mass Mailing Service with Team Collaboration Tools

One of the more affordable mass email sending software on the market, Mailjet is another unsung email marketing platform most marketers miss out on.

Best for: Marketing teams and agencies that need collaborative tools for email campaigns;
Mailjet pricing: Starts at $17/month for up to 15,000 monthly emails;
Mailjet Free plan: Includes up to 6,000 emails per month with basic features like email templates.

For starters, there’s no denying that the Mailjet crew takes bulk email sending seriously. It offers robust segmentation tools that allow you to target specific audience groups, plus dynamic content blocks that make it easy to tailor emails to individual preferences. Great if you aim to scale, great if you’re just exploring the bulk emailing waters.

Another pretty impressive thing about Mailjet is its real-time team collaboration feature. It’s a game-changer for marketing teams, allowing multiple people to edit and approve email drafts simultaneously, streamlining the entire content creation and review process.

The free plan, with 6,000 emails per month, is a great option for small businesses just starting out. So whether you’re running bulk email campaigns or sending transactional emails, Mailjet provides the tools and security you need to keep everything running smoothly. “The email solution for fast-moving teams”? I guess, they’ve truly lived up to their tagline.

Key Features

• Real-time team collaboration. Work together seamlessly with your team, editing emails and reviewing drafts simultaneously, just like in Google Docs;
• Dynamic content blocks. Personalize emails on a large scale by inserting dynamic content tailored to each recipient’s behavior or preferences;
• Transactional email integration. Easily send automated order confirmations, receipts, and other transactional emails using Mailjet’s robust API;
• A/B testing suite. Optimize your campaigns by testing different subject lines, content, or send times to see what drives the best engagement.

Pros & Cons

Teams appreciate Mailjet for its “user-friendly interface” and “solid deliverability performance,” with one user noting how easy it is to create personalized messages and track results with real-time analytics. The automation and segmentation tools are also praised for saving time and ensuring targeted messaging.

However, some users mention slower customer support during peak periods and find template customization “more limited than competitors.” The free plan’s email cap of 6,000 emails is also seen as lower than that of other providers, including Sender or MailerLite.

Bottom Line

Mailjet is a user-friendly, affordable solution for both marketing and transactional emails. With features like real-time collaboration and reliable deliverability, it’s perfect for small to medium-sized businesses. While its automation and segmentation are basic, its simplicity and pricing make it a solid choice for teams looking for efficiency without complexity.

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Constant Contact — Plug-and-Play Bulk Email Service

Constant Contact is an email marketing platform built for small businesses that don’t have technical expertise. It’s more of a “master of all trades,” offering a bit of everything, but without necessarily excelling in one area. That said, I was pleasantly surprised by how capable it is as a bulk emailer.

Best for: Small businesses, solopreneurs, and nonprofits;
Constant Contact pricing: Starts at $12/month for up to 500 contacts;
Constant Contact Free plan: 30-day free trial only.

The drag-and-drop editor, for instance, is lean and user-friendly, which allowed me to create polished bulks swiftly, even without design skills. The variety of pre-designed templates came in handy as well, which made it easy to get campaigns like flash sales or event promotions up and running fast.

Constant Contact’s email list segmentation tool was particularly helpful, enabling me to target specific groups of customers based on their behavior or location. However, what stood out the most was the high deliverability rate (around 87% on average), as my emails consistently landed in inboxes.

That said, I did miss some of the more advanced automation tools, like branching logic and dynamic customization, that other, more specialized platforms offer.

Key Features

• Extensive template library. Access a wide range of customizable, professional email templates for any occasion, from newsletters to promotions;
• Contact list management. Easily organize, segment, and maintain your contacts for targeted email campaigns;
• Email scheduling. Plan and schedule your email campaigns in advance to send at the optimal time;
• AI-powered suggestions. Get smart recommendations on subject lines, content, and send times to improve engagement.

Pros & Cons

Nonprofits and event organizers love Constant Contact for its event management tools and easy contact list management, with one user noting, “Customer Support is always prompt and courteous.” Businesses appreciate the drag-and-drop editor and detailed tracking, making email creation and performance monitoring seamless. 

Bottom Line

Constant Contact is a user-friendly email marketing platform ideal for small businesses, nonprofits, and event organizers. It offers drag-and-drop email builder, a strong selection of pre-built templates, and sturdy deliverability. While it excels in simplicity and support, those needing robust automation or extensive customization might find it lacking compared to more specialized platforms.

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ActiveCampaign — Email Automation + 94% Inbox Delivery Rate

At this point, ActiveCampaign has firmly established itself as one of the veterans of email automation, alongside Mailchimp and other industry leaders. So, when I tested its capabilities for bulk email sending, it certainly didn’t disappoint.

Best for: SMBs looking for advanced email automation and CRM features;
ActiveCampaign Pricing: Starts at $15/month for up to 1,000 contacts and up to 10,000 emails/month;
ActiveCampaign Free plan: 14-day free trial only.

During my time with ActiveCampaign, I was impressed by how seamlessly it combines advanced marketing automation with powerful CRM functionality. The platform makes it easy to set up personalized workflows that adapt based on subscriber behavior, which really helps improve the customer experience. 

Unlike basic bulk email services, ActiveCampaign uses machine learning to fine-tune send times, content recommendations, and even customer journey paths, all on its own. With over 870 pre-built automation templates, it’s perfect for everything from simple welcome emails to complex lead scoring systems.

Plus, with that A-level inbox delivery rate (94%), my emails didn’t have any issues dropping in inboxes, not spam.

Key Features

• Visual automation builder. Easily create personalized workflows with drag-and-drop tools, automating emails based on customer actions;
• Advanced lead scoring & behavioral tracking. Track and score leads based on engagement to prioritize high-value prospects;
• Predictive sending optimization. Automatically send emails at the best times for each individual, boosting engagement rates;
• Bulk email sending. Send high-volume campaigns to your entire contact list with strong deliverability;
• High deliverability. Ensure your emails reach inboxes consistently with robust infrastructure and compliance tools.

Pros & Cons

Users praise ActiveCampaign for its powerful automation and high deliverability, keeping emails out of spam. One user mentioned, “Advanced segmentation and AI make personalized communication effortless.” The automation builder simplifies tasks and boosts engagement, making it a solid tool for larger teams.

Bottom Line

ActiveCampaign is a powerful choice for SMBs looking to level up their email marketing with advanced automation and CRM features. With smart tools like machine learning, predictive sending, and high deliverability, it’s great for businesses that want to personalize their campaigns at scale.

While it’s more complex than basic bulk email services, its performance and features make it a standout option for serious email marketers.

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HubSpot — Bulk Email Marketing Services with CRM Integration

If you’re looking for a solid bulk emailer that combines email marketing essentials with powerful CRM integration, HubSpot should be on your radar. 

It offers a smooth drag-and-drop automation builder and a solid set of analytics tools, making it a great choice for businesses that need comprehensive lead management.

Best for: B2B companies requiring CRM and email integration;
HubSpot pricing: Starts at $15/month for up to 1,000 contacts;
HubSpot Free plan: Up to 2,000 monthly emails + 3 email templates.

There’s much to like about this marketing platform, but one of the first things that caught my attention was how HubSpot handles bulk email sending. The platform not only makes the process intuitive and straightforward, but it also prioritizes a clean inbox deliverability rate (up to 93%).

Its CRM integrates directly with HubSpot’s email marketing tools, which is great if you want to track customer interactions and manage relationships from one platform. It helps centralize customer data, making it easier to segment and target your audience for more personalized campaigns.

HubSpot also offers an email health dashboard along with a health score (out of 10), enabling you to track your sending performance and maintain a good sender reputation. There’s also a free plan that gives you 2,000 monthly emails, which is more than enough to see if their bulk email sending is up for the task.

Key Features

• Integrated CRM platform. Centralize customer data, track interactions, and manage relationships seamlessly under a single dashboard;
• Smart content personalization. Tailor your emails based on customer behavior, preferences, and lifecycle stages to create highly relevant, targeted campaigns;
• Email tracking & analytics. Monitor email performance with detailed reports on opens, clicks, and engagement, helping you optimize future bulk campaigns;
• A/B testing for emails. Test different subject lines, content, and design variations in bulk emails to improve engagement.

Pros & Cons

B2B teams appreciate HubSpot’s seamless CRM integration and comprehensive lead management capabilities. One user highlighted that “HubSpot is helping to bridge the gap between engineering and marketing.” Other reviews echoed this sentiment, adding that, “Every interaction flows into one contact record, giving a live, 360° view of the buyer journey.”

Bottom Line

HubSpot is an excellent option for businesses seeking a robust email marketing platform with seamless CRM integration. Its user-friendly automation tools, strong deliverability rates, and detailed analytics make it a solid choice for companies looking to manage leads and optimize campaigns efficiently.

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Mailgun — SMTP & API Bulk Email Service for High-Volume Email Delivery

Mailgun is a developer-focused email service; it’s one of the better options if you need that extra set of controls. The real-time email validation and high-speed sending capabilities handle large volumes of both transactional and marketing emails without breaking a sweat.

Best for: Development teams requiring API-first email solutions;
Mailgun pricing: Starts at $15/month for up to 10,000 monthly emails;
Mailgun Free plan: Available for up to 100 emails/day.

What really stands out is the platform’s ability to minimize bounces and spam complaints, thanks to its powerful sending API and dedicated IP management. Mailgun’s RESTful API is designed for seamless integration and supports batch sending of up to 1,000 emails at a time.

On top of that, Mailgun’s detailed email analytics give me instant insights into campaign performance, allowing me to tweak and optimize in real-time.

If you’re looking for a solution that can scale with your business and keep your email deliverability high, Mailgun is a solid choice—especially for those who’re not afraid to roll up their sleeves for additional control options.

Key Features

• Powerful sending API. Integrate email sending seamlessly into your apps or websites with a robust, scalable API;
• Real-time email validation. Ensure clean, deliverable email lists by verifying addresses in real time to reduce bounce rates;
• Webhooks and event notifications. Get instant notifications on email events like opens, clicks, and bounces to stay on top of campaign performance;
• Dedicated IP management. Improve deliverability and maintain a good sender reputation with your own dedicated IP address;

Pros & Cons

Non-technical users often struggle with the setup process and find the interface intimidating compared to user-friendly alternatives like Mailchimp. “Initial setup can be confusing”, and “Technical at first” are common sentiments. Despite this, once set up, Mailgun is praised for its effectiveness.

Bottom Line

Mailgun is a powerful choice for development teams needing a robust, API-first solution for high-volume email delivery.

While the platform offers unmatched control over bulk email campaigns, it’s best suited for technically skilled teams due to its complex setup. Mailgun’s advanced deliverability features and scalability make it ideal for developers focused on maintaining high inbox placement at scale.

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SendGrid — SMTP Bulk Email Service for High Deliverability Campaigns

SendGrid stands out for its ability to reliably deliver bulk emails, making it a top choice for businesses and developers focused on scaling their email marketing efforts.

Best for: High-volume senders, developers, and businesses requiring robust email delivery;
SendGrid pricing: Starts at $15/month for up to 100,000 contacts & 300,000 emails/month;
SendGrid Free plan: 60-day free trial only.

If high deliverability is your top priority, you can’t go wrong with SendGrid. It ensures your emails land in inboxes instead of spam folders, which is exactly what I need for sending everything from transactional emails to marketing campaigns.

I especially love how SendGrid’s API and SMTP relay service seamlessly integrate with my existing systems. It’s a dream for developers or anyone with a bit of technical know-how. The real-time deliverability tracking and advanced analytics are also game-changers, helping me fine-tune campaigns and keep that sender reputation intact.

Key Features

• High deliverability infrastructure. Ensures emails reach inboxes, helping maintain a good sender reputation;
• SMTP relay and API. Ideal for businesses needing high-volume email sending capabilities and system integrations;
• Scalable platform. Supports large-scale sending, capable of handling millions of emails per month;
• Dedicated IP addresses (available on higher plans). Helps maintain sender reputation and improve email deliverability over time.

Pros & Cons

Users highlight SendGrid’s reliability for bulk email campaigns, especially its powerful API and detailed analytics. One reviewer glared, “SendGrid makes my life so much easier!” and many appreciate its ability to handle high-volume sends with minimal issues.

The platform also offers great transparency, with one user noting it provides “exceptional visibility into email deliverability, making it easy to troubleshoot.”

However, some users feel that, despite being backed by Twilio, SendGrid can lack personalized support, with one reviewer stating, “Twilio is too large and can’t devote dedicated resources to solving problems.”

Bottom Line

SendGrid is a highly reliable choice for businesses requiring high deliverability and scalability. It offers strong integration capabilities, making it ideal for developers, while its robust analytics ensure marketers can optimize their campaigns effectively. Its scalability makes it a go-to for businesses looking to grow without compromising deliverability.

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Bulk Email Services: Pricing Comparison Table

Here’s a quick look at the pricing for some of the top bulk email services, so you can get an idea of what it’ll cost to manage different contact lists. If you’re looking for a more detailed breakdown, check out our price calculator tool below the table.

Provider	10,000 Contacts	50,000 Contacts	100,000 Contacts
Sender	$40/month	$159/month	$257/month
Omnisend	$92/month	$289/month	$630/month
Mailtrap	$15/month	$20/month	$30/month
GetResponse	$65/month	$247/month	$446/month
Brevo	$15/month	$50/month	$62/month
Mailchimp	$135/month	$450/month	$800/month
Mailjet*	$17/month	$17/month	$17/month
Constant Contact	$120/month	$430/month	N/A
ActiveCampaign	$149/month	$609/month	N/A
HubSpot	$11/month	N/A	N/A
Mailgun*	$15/month	$15/month	$15/month
SendGrid	$25/month	$120/month	$200/month

* Both Mailjet and Mailgun don’t put any limits on contact count. That’s why I’m only showing their base prices

How to Choose the Right Mass Email Service?

Choosing the right mass email service depends on your business size, technical needs, and growth stage. Start by evaluating your current subscriber count, budget constraints, and required features like automation complexity, integrations, and team collaboration needs.

Startups & Solo Entrepreneurs (0-500 contacts)

• Recommended: Sender or GetResponse;
• Why: Generous free plans, simple setup, no technical expertise required;
• Budget: Start free, upgrade around $7-25/month when scaling;
• Key considerations: Prioritize ease of use and free sending limits over advanced features.

At this stage, you need maximum value with minimal complexity. Focus on bulk email services that offer substantial free tiers and won’t penalize you for learning. Both Sender and GetResponse provide excellent free plans with room to grow, though GetResponse is better for content creators while Sender works for any business type. 

Small Businesses (500-2,500 contacts)

• Recommended: Sender, Brevo, or Omnisend (for ecommerce);
• Why: Affordable pricing, essential automation features, good deliverability;
• Budget: $10-30/month depending on features needed;
• Key considerations: Balance cost with automation capabilities and integration needs.

You’re ready for more sophisticated features like automation workflows and better segmentation. Ecommerce businesses should strongly consider Omnisend for its specialized features, while service businesses will find Sender or Brevo more cost-effective with solid email segmentation capabilities. Understanding the best way to send bulk email campaigns becomes crucial at this stage.

Growing Businesses (2,500-10,000 contacts)

• Recommended: Omnisend, Mailchimp, or Sender;
• Why: Advanced automation, team collaboration, comprehensive analytics;
• Budget: $30-100/month for robust feature sets;
• Key considerations: Advanced segmentation, team features, and integration ecosystem.

Your email marketing is becoming business-critical, requiring sophisticated automation and detailed analytics. Consider bulk email services that offer team collaboration, advanced reporting, and can handle complex customer journeys as you scale toward enterprise needs. Email personalization becomes essential for maintaining engagement.

Enterprise (10,000+ contacts)

• Recommended: HubSpot, Mailgun (technical teams), or Omnisend (ecommerce);
• Why: Enterprise-grade features, dedicated support, advanced integrations;
• Budget: $100-500+/month for comprehensive solutions;
• Key considerations: CRM integration, API access, deliverability consulting, compliance tools.

You need mass mailing tools that can handle complex operations, integrate with existing systems, and provide dedicated support. Technical teams may prefer Mailgun’s API-first approach, while marketing-focused organizations benefit from HubSpot’s comprehensive ecosystem or Omnisend’s ecommerce specialization.

Focus on platforms that can automate mass email campaigns at scale while managing a large number of subscribers effectively.

FAQs About Bulk Emailing

What is the difference between bulk email and spam?

Bulk email refers to legitimate marketing emails sent to subscribers who have given permission to receive them. These emails include newsletters, promotional offers, and updates that provide value to recipients. Spam, on the other hand, consists of unsolicited emails sent to people who never agreed to receive them, often containing deceptive content or malicious links.

How many emails can I send for free?

Free email limits vary significantly between platforms. Most services offer 1,000-2,000 monthly emails on free plans, but Sender stands out with 15,000 free bulk emails—15 times more than competitors like Mailchimp. Other generous options include Kit with unlimited emails (after contacting support) and Brevo with 300 daily emails.

When choosing a free plan, consider both monthly limits and daily restrictions, as some platforms cap daily sending even within monthly allowances.

Can I use Gmail for bulk email marketing?

Using Gmail for bulk email marketing isn’t recommended as it might get your account suspended—although there’s no one stopping you from using it for bulk emailing needs. Not to mention that Gmail limits you to 500-2,000 emails per day, lacks unsubscribe buttons and tracking tools, and violates its Terms of Service when you send marketing campaigns.

Switch to a dedicated service like Sender instead—they handle the technical stuff that keeps you out of spam folders, provide real marketing features like automation and analytics, and ensure you stay compliant with email laws while reaching your audience’s inboxes.