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Sender - Email marketing platform > Compare > Mailjet vs SendGrid
Plans start at
$15/month (15,000 emails, unlimited contacts)
Free plan
6,000 emails/month, 200 emails/day
Overall rating:
4.0
/5
G2:
4 rating star
Trustpilot:
3.9 rating star
Capterra:
4.2 rating star
Plans start at
$15/month (5,000 contacts, 15,000 emails)
Free plan
100 emails/day (API) or 2,000 contacts + 6,000 emails/month (Marketing)
Overall rating:
3.1
/5
G2:
4 rating star
Trustpilot:
1.1 rating star
Capterra:
4.2 rating star
- by Emily Austin

Mailjet vs SendGrid: End Your Email Marketing Confusion 2026

Our expert reviewers combine real-world testing with insights from user reviews across
Capterra, G2, Trustpilot, and Reddit to create an objective evaluation.
Learn more about our review methodology

Picking the wrong email platform can cost you more than money — it can cost you deliverability, team productivity, and customers. Mailjet and SendGrid are two of the most widely used email service providers on the market, but they’re built for very different people. 

Mailjet is designed for marketing teams who want an intuitive, affordable platform they can use without a developer on call. SendGrid is engineered for technical teams that need rock-solid transactional email infrastructure and deep API control. 

In this guide, we break down every major feature, pricing tier, and real user experience so you can stop second-guessing and choose the platform that actually fits your business.

Disclosure: This review is published on Sender.net, which provides an email marketing platform that may compete with Mailjet or SendGrid. Our evaluation is based on personal testing and user feedback and aims to offer an unbiased perspective.

Mailjet vs SendGrid — Quick Comparison

Choosing between Mailjet and SendGrid comes down to one core question: are you a marketer or a developer? Mailjet is built for marketing teams who want intuitive campaign tools with solid collaboration features. SendGrid is engineered for developers and businesses with high-volume transactional email needs. 

Both platforms allow you to send emails at scale, but serve meaningfully different use cases. Mailjet offers a generous permanent free tier; SendGrid currently provides a 60-day free trial rather than a standing free plan.

Here’s a side-by-side snapshot before we dig into the details:

Mailjet

SendGrid

Best For

Marketing teams, SMBs

Developers, high-volume senders

Email Templates

Drag-and-drop template library

100+ responsive designs

Ease of Use

★★★★☆

★★★☆☆

Advanced Features

★★★☆☆

★★★★★

Automation

Basic workflows

Advanced multi-step flows

Customer Support

Email + chat (all plans)

Ticket support (all plans); live chat or callback on paid plans

Mailjet vs SendGrid — Feature Comparison

Both platforms handle email marketing campaigns effectively, but differ significantly in who they’re designed for.

Mailjet streamlines campaign management with a clean, intuitive dashboard built for marketing teams. Multiple users can collaborate on campaigns in real time, with role-based permissions ensuring the right people have the right access. The workflow is straightforward — build, preview, and schedule campaigns without needing technical help. A/B testing is available on Premium plans, and the Campaign Comparison tool makes it easy to benchmark performance across sends.

SendGrid offers a more technical campaign management experience. It’s functional and capable, but clearly designed with developers in mind rather than everyday marketers. It supports dynamic content using Liquid syntax for granular personalization, and advanced scheduling options give technical teams precise control over delivery timing. Managing campaigns feels less intuitive out of the box, and non-technical users often need time to find their footing.

Feature

Mailjet

SendGrid

Campaign Setup

Intuitive, marketer-friendly

Flexible, developer-oriented

Real-Time Collaboration

Yes, multi-user editing

Not available

Send Time Optimization

Manual scheduling

Manual + API-controlled

Campaign Organization

Folders and search

Categories and tagging

A/B Testing

Premium plan

All paid plans

Winner: Mailjet for marketing teams wanting a guided, collaborative campaign workflow; SendGrid for developer-led teams needing programmatic control.

Both platforms offer drag-and-drop email editors, but the quality and depth of the design experience differs noticeably.

Mailjet has invested heavily in its editor. The interface is clean and beginner-friendly, with 70+ mobile-responsive templates covering a range of industries and campaign types. All templates render correctly across email clients without any extra work. For teams that want to go deeper, Mailjet supports MJML — its open-source responsive email framework — as well as a raw HTML editor.

Paid plans include an AI template generator and Mailjet Assistant, which can draft branded email copy in seconds across 8 languages. Real-time collaborative editing means multiple team members can work on the same email simultaneously.

SendGrid also provides a drag-and-drop editor and a library of 100+ responsive templates. Its dynamic template system is powerful for developers building data-personalized emails at scale using Handlebars syntax. However, the editor interface is more utilitarian than Mailjet’s, and non-technical users often find it harder to achieve polished results without guidance. There is no AI writing assistant or collaborative editing feature.

Feature

Mailjet

SendGrid

Email Editor

Intuitive drag-and-drop

Functional drag-and-drop

Template Library

70+ templates

100+ templates

Mobile Optimization

Automatic

Automatic

Code Editor

MJML + HTML

HTML + Handlebars

AI Writing Assistant

Yes, on paid plans

Not available

Collaborative Editing

Yes, real-time

Not available

Winner: Mailjet for design-focused marketing teams who want an intuitive editor with AI tools and collaboration; SendGrid for developers building dynamic, data-driven templates.

Both platforms support email automation, but they cater to very different levels of technical complexity.

Mailjet offers a visual workflow builder that covers the core automation needs of most marketing teams. You can create multi-step sequences triggered by contact behavior, time delays, and conditional logic, with 12 pre-built workflow templates to get started quickly.

Welcome series, re-engagement flows, and post-purchase follow-ups are all straightforward to set up without developer input. Automation has improved significantly in recent updates and now handles the vast majority of everyday use cases for SMBs and growing teams.

SendGrid approaches automation with developer-level depth. Its multi-step automation supports complex branching logic, and its API-driven architecture lets technical teams trigger email flows from virtually any external event — user sign-ups, product actions, purchase data, or custom application behavior.

For SaaS companies and developer-led marketing teams, this makes SendGrid’s automation significantly more powerful and flexible, though it requires more setup time and technical resources to fully leverage.

Feature

Mailjet

SendGrid

Workflow Builder

Visual, beginner-friendly

Visual + API-driven

Pre-Built Templates

12 workflow templates

Available

Behavioral Triggers

Yes

Yes, advanced

Branching Logic

Basic conditions

Complex, multi-step

External API Triggers

Yes

Yes, more powerful

Winner: SendGrid for complex, API-integrated automation workflows; Mailjet for teams that need reliable, easy-to-configure automation without developer support.

Transactional email is SendGrid’s home turf — but Mailjet is a more capable competitor in this space than many people realize.

Mailjet handles transactional email through its REST API and SMTP relay, with support for multiple SMTP ports to avoid firewall restrictions. Full SPF, DKIM, and DMARC authentication is straightforward to configure once your sending domain is registered, and built-in email validation helps reduce bounce rates before messages are even sent.

Webhook-based event tracking gives you visibility into delivery, opens, clicks, and bounces in real time. A key advantage is that Mailjet manages both marketing and transactional emails under one roof — one account, one API, one dashboard.

SendGrid was built as a dedicated transactional email service at scale, and it remains the industry benchmark. Its infrastructure processes billions of transactional messages monthly, backed by ISP feedback loop partnerships, proprietary anti-spam technology, and a real-time email activity feed for granular delivery monitoring.

Developer SDKs cover seven major programming languages, and the platform’s documentation for transactional integration is among the most thorough available. Dedicated IPs and a robust warm-up process are well-supported on paid plans.

Feature

Mailjet

SendGrid

API Type

REST API + SMTP

REST API + SMTP

Email Validation

Built-in

Yes

Real-Time Webhooks

Yes

Yes, granular activity feed

Dedicated IPs

Custom plans

Pro/Premier (Email API) and Advanced (Marketing Campaigns) tiers

SDK Languages

Multiple

7+ languages

Scale & Infrastructure

Strong

Industry-leading

Winner: SendGrid for high-volume transactional email with maximum deliverability and developer tooling; Mailjet for teams wanting marketing and transactional email managed in one unified platform.

Landing pages are not a core strength of either platform, but there are meaningful differences in what each offers natively.

Mailjet includes a built-in form builder and basic landing page functionality aimed at list growth and lead capture. You can create subscription forms, embed them on your website, and build simple standalone pages without leaving the platform.

Pop-up forms are also supported. It’s sufficient for standard email sign-up workflows, but there’s no A/B testing for page variants, no advanced conversion tracking, and the design flexibility is limited compared to dedicated landing page tools.

SendGrid offers basic sign-up forms but has even less native landing page capability than Mailjet. The platform is email-first by design, and landing page creation has never been a priority feature. Marketers who rely on SendGrid typically use third-party tools for landing pages and connect them via integration or API.

There are no pop-up form builders or native page templates within the standard product.

Feature

Mailjet

SendGrid

Subscription Forms

Yes, with builder

Yes, basic

Pop-Up Forms

Via third-party integration (not confirmed as native feature)

No

Native Landing Pages

Basic

Very limited

Custom Domain Pages

Limited

Not available

A/B Page Testing

Not available

Not available

Winner: Mailjet for offering more native form and landing page options; though neither platform replaces a dedicated landing page builder for serious conversion optimization.

Managing and segmenting your contact list effectively is foundational to email performance — and this is one area where pricing structure matters as much as features.

Mailjet allows unlimited contacts on all paid plans, charging only for the volume of emails sent rather than the size of your list. This makes it particularly cost-effective for businesses with large audiences that don’t send at high frequency.

Contact properties are fully customizable, and segmentation tools let you filter by activity, contact attributes, and custom fields. Higher-tier plans add AI-powered segmentation that can automatically surface high-engagement groups, adding genuine value for growing marketing programs.

SendGrid charges based on both email volume and contact storage, which can increase costs as your list scales. Its segmentation capabilities are more advanced, however — you can build highly granular audience segments using multiple conditions, engagement history, and custom event data pulled from external products or systems.

For developer-driven teams pushing user data via API, SendGrid’s contact management is more powerful and more flexible.

Feature

Mailjet

SendGrid

Contact Limits

Unlimited on paid plans

Tiered by plan

Custom Fields

Yes

Yes

Behavioral Segmentation

Yes

Yes, advanced

AI Segmentation

Yes, higher tiers

Not available

List Import / Export

Yes

Yes

Winner: Mailjet for cost-effective list management with unlimited contacts and AI segmentation; SendGrid for teams needing advanced, data-driven segmentation tied to external product behavior.

Neither platform is purpose-built for ecommerce, but both offer integrations and tools that can meaningfully support online retailers.

Mailjet integrates natively with major ecommerce platforms including Shopify, WooCommerce, Magento, and PrestaShop, allowing you to sync customer and order data to power abandoned cart emails, post-purchase sequences, and product recommendation campaigns.

A SuitePOS partnership enables transactional emails and SMS to be triggered directly from point-of-sale systems — a relatively unique capability for a platform at this price point. Ecommerce-focused email templates are available in the template gallery.

SendGrid approaches ecommerce primarily through its transactional email infrastructure. It excels at order confirmations, shipping updates, and delivery notifications — including a shipping API integration that can automatically push package tracking updates to customers.

Marketing campaign tools for ecommerce are less developed natively, and businesses looking for features like product blocks, revenue attribution, or deep ecommerce analytics will typically need to rely on third-party integrations.

Feature

Mailjet

SendGrid

Shopify Integration

Yes

Yes

WooCommerce Integration

Yes

Yes

Abandoned Cart Emails

Yes, via automation

Yes, via automation

Post-Purchase Sequences

Yes

Yes

Shipping Notifications

Basic

Advanced, shipping API

POS Integration

Yes, SuitePOS

Not available

Winner: Mailjet for marketing-driven ecommerce campaigns and POS integration; SendGrid for high-volume transactional ecommerce emails and automated shipping notifications.

Deliverability determines whether your emails land in the inbox or the spam folder — and both platforms take it seriously, though with different levels of infrastructure depth.

Mailjet is hosted on Google Cloud Platform with 99.9% infrastructure availability and supports full SPF, DKIM, and DMARC authentication. A standout feature is its built-in email validation tool, which verifies contact addresses before sending to proactively reduce bounce rates — something most platforms don’t include at this level.

Custom plans include access to dedicated deliverability experts who actively review your sending setup and guide your program as it scales. Shared and dedicated IP options are available depending on plan level.

SendGrid has long been regarded as an industry leader in deliverability. Its infrastructure processes billions of emails monthly, underpinned by proprietary anti-spam technology, ISP feedback loop partnerships, and a real-time email activity feed for monitoring delivery events at the individual message level.

Bounce classification, spam reporting, and ISP-level delivery data give technical teams precise visibility into any deliverability issues. Dedicated IPs with structured warm-up plans are available on paid tiers.

Feature

Mailjet

SendGrid

Authentication (SPF/DKIM/DMARC)

Yes

Yes

Email Validation

Built-in

Yes

Dedicated IPs

Custom plans

Paid plans

Real-Time Activity Feed

Basic

Granular, per-message

Deliverability Experts

High-volume plans

Enterprise plans

Infrastructure Scale

Strong (Google Cloud)

Industry-leading

Winner: SendGrid for maximum deliverability at high volumes with deeper monitoring tools; Mailjet for strong deliverability with built-in email validation at a more accessible price point.

SMS is not a primary feature of either platform — both are fundamentally email-first tools, and their SMS capabilities reflect that.

Mailjet supports transactional SMS via its Send SMS API, which is part of parent company Sinch’s broader communications infrastructure. It handles one-way and two-way messaging for use cases like authentication codes, appointment reminders, delivery alerts, and order confirmations.

The underlying Sinch infrastructure is enterprise-grade, but native SMS campaign management — bulk promotional sends, a visual SMS builder, or SMS list segmentation — is not available within the Mailjet interface itself. For full SMS marketing capability, you’d need to use Sinch’s separate products such as SimpleTexting.

SendGrid has no native SMS features at all. As a Twilio-owned product, access to SMS is technically possible through the broader Twilio ecosystem, but it requires a completely separate account, setup, and billing relationship. There is no SMS functionality built into the SendGrid dashboard or API that non-developers can access without additional configuration.

Feature

Mailjet

SendGrid

Transactional SMS

Yes, via API

Not native

Two-Way SMS

Yes, via Sinch API

Not available

SMS Campaign Builder

Not available

Not available

SMS + Email in One UI

Not available

Not available

Parent Company SMS Tool

Sinch / SimpleTexting

Twilio

Winner: Mailjet for offering native transactional SMS via API through Sinch; though neither platform is a true SMS marketing solution and dedicated SMS tools should be considered if this channel is a priority.

Both platforms offer solid campaign analytics, but the depth and intended audience of their reporting tools differ meaningfully.

Mailjet provides real-time campaign reporting covering open rates, click rates, bounce rates, unsubscribes, and geographic data. The click map feature visualizes which links and content blocks in your emails drive the most engagement, and the Campaign Comparison tool lets you track performance trends across multiple sends.

Custom reporting is available on higher-tier plans. The overall reporting interface is well-designed for marketers — visual, easy to interpret, and actionable without needing to dig through raw data.

SendGrid offers more comprehensive and technically detailed analytics. Its email activity feed provides granular, real-time event data at the individual message level — tracking delivery, opens, clicks, bounces, and spam reports for every single email sent.

Category-level tagging allows teams to segment performance data by campaign type, and all event data is accessible via webhooks for routing into BI tools or custom dashboards. For organizations that make data-driven decisions at scale, SendGrid’s reporting depth is a genuine competitive advantage.

Feature

Mailjet

SendGrid

Real-Time Dashboard

Yes

Yes

Click Maps

Yes

Not available

Campaign Comparison

Yes

Basic

Email Activity Feed

Basic

Granular, per-message

Custom Reports

Higher plans

Yes

Webhook Event Data

Yes

Yes, advanced

Winner: SendGrid for data teams needing granular, API-accessible event reporting; Mailjet for marketing teams who want clear, visual campaign insights without technical complexity.

A platform’s integration ecosystem determines how well it fits into your existing tech stack — and both tools offer strong options, though for different audiences.

Mailjet connects natively with 100+ tools spanning CRM platforms (Salesforce, HubSpot), ecommerce (Shopify, WooCommerce, Magento), CMS (WordPress), and marketing tools. Its REST API is clean, well-documented, and accessible to both developers and technical marketers.

Native Zapier and Make (Integromat) support extends its reach to thousands of additional tools without writing a single line of code — a significant practical advantage for non-technical teams. The API supports full email and contact management, template handling, and event tracking.

SendGrid offers one of the most respected and flexible API solutions in the email industry. SDK support covers seven major programming languages — Node.js, Python, Ruby, Go, Java, PHP, and C# — with documentation that is consistently praised for its depth and clarity.

As a Twilio company, SendGrid integrates naturally into the broader Twilio communications platform. Its webhook system provides more granular event data than Mailjet’s, making it better suited for teams building custom internal tools or complex data pipelines around email events.

Feature

Mailjet

SendGrid

Native Integrations

100+

80+

REST API

Yes

Yes, more advanced

SDK Languages

Multiple

7 languages

Zapier / Make

Yes

Yes

Webhook Depth

Standard

Granular

Documentation Quality

Good

Excellent

Winner: SendGrid for developer teams building custom integrations with a best-in-class API; Mailjet for marketing teams prioritizing a broad native integration library and no-code connectivity.

When something goes wrong mid-campaign, support quality can make all the difference — and both platforms have real strengths and real gaps.

Mailjet provides email and live chat support across all paid plans, which is more accessible than SendGrid’s free-tier-only email option. Enterprise and Custom plan customers get 24/7 availability and access to dedicated deliverability experts — a meaningful advantage for high-volume senders. The help documentation covers most common use cases well.

However, user feedback is mixed on response times for standard tickets, and some users report issues getting complex problems escalated quickly, with the team slow to respond on more technical queries.

SendGrid is widely recognized for having some of the best technical documentation in the email industry — thorough, well-organized, and kept up to date. For developers, this often means fewer support tickets are needed in the first place. Paid plans add live chat support, and premium and enterprise tiers get priority response times.

Free plan users are limited to email support, which can feel inadequate when urgent issues arise. SendGrid does not offer traditional phone support, but paid customers can request a callback during business support hours — a distinction worth noting, though it falls short of full phone support availability.

Feature

Mailjet

SendGrid

Email Support

All plans

All plans

Live Chat

All paid plans

Paid plans only

Phone Support

Not available

Callback available on paid plans

24/7 Availability

Enterprise plans

Enterprise plans

Documentation Quality

Good

Excellent

Deliverability Experts

High-volume plans

Enterprise plans

Winner: Mailjet for more accessible day-to-day support across all paid tiers; SendGrid for superior documentation and community resources that reduce the need for support in the first place.

Mailjet vs SendGrid — Pricing & Plans

Pricing Comparison

Mailjet and SendGrid take fundamentally different approaches to pricing. Mailjet charges by email volume only — contacts are unlimited on all paid plans, which is a major advantage for businesses with large lists. SendGrid splits its product into Email API and Marketing Campaigns, each billed separately, and charges based on both volume and contact storage.

Plan

Mailjet

SendGrid

Entry Paid Plan

Essential — $17/month

Essentials — $19.95/month

Mid-Tier Plan

Premium — $27/month

Pro — $89.95/month

Enterprise Plan

Custom pricing

Premier — custom pricing

Pricing Model

Email volume only

Email volume + contact storage

Contact Limits

Unlimited on paid plans

Tiered by plan

Annual Discount

10% off

Not standard

Overage Charges

$1.04–$2.24 per 1,000 emails

~$0.00088–$0.00133 per email

Mailjet is the more affordable and scalable option for small-to-mid-sized businesses, particularly those with growing contact lists who send at moderate frequency. SendGrid’s pricing scales steeply — especially once you need dedicated IPs or advanced features, which don’t arrive until the $89.95/month Pro tier.

Free Plan Comparison

The two platforms take very different approaches here. Setting up a free account with Mailjet gives you access to a permanent plan that is genuinely usable for small businesses and early-stage marketing. SendGrid no longer offers a standing free tier — following the retirement of its legacy free plan in 2025, it now provides a 60-day free trial, primarily suited to developers evaluating the API before committing to a paid plan.

Feature

Mailjet Free

SendGrid Free

Monthly Email Limit

6,000 emails/month

~3,000 emails/month

Daily Sending Limit

200 emails/day

100 emails/day

Contact Limit

1,500 contacts

2,000 contacts

Branding Removed

No — Mailjet logo on emails

No — SendGrid branding

Automation

Not included

Not included

A/B Testing

Not included

Not included

Credit Card Required

No

No

Time Limit

Forever free

60-day free trial

Mailjet’s free plan is the clear winner here — 6,000 emails per month on a permanent tier with a working campaign builder is enough to run a real newsletter. SendGrid’s offer is a 60-day free trial capped at 100 emails per day, which is realistically only useful for developers evaluating deliverability or API integrations before committing to a paid plan.

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Mailjet vs SendGrid — Pros and Cons

Every platform has trade-offs, and Mailjet and SendGrid are no exception. Mailjet wins on accessibility, affordability, and collaboration; SendGrid wins on raw power, deliverability infrastructure, and developer depth. Here’s a clear-eyed summary of where each platform shines — and where it falls short.

Mailjet

SendGrid

Pros
  • Affordable pricing with unlimited contacts on all paid plans
  • Real-time collaborative email editor unique to the market
  • Marketing and transactional email managed under one roof
  • Industry-leading API and developer tooling
  • Consistently excellent deliverability at high volumes
  • Granular analytics and advanced segmentation options
Cons
  • Automation and segmentation tools are fairly basic
  • No meaningful native landing page builder
  • Free plan’s 200 emails/day cap limits real-world testing
  • Not designed for non-technical marketing teams
  • Gets expensive fast — advanced features locked behind $89.95/month Pro plan
  • Marketing and transactional email billed as two separate products

Which Platform Should You Choose?

Mailjet is Best For

Small businesses and growing marketing teams who need an affordable, easy-to-use platform without a steep learning curve. Mailjet’s unlimited contacts on paid plans and email-volume-based pricing make it ideal for businesses with large lists that don’t send at high frequency. The collaborative editor is a genuine advantage for teams where multiple people manage campaigns.

Specific use cases: Small ecommerce stores running post-purchase sequences and abandoned cart campaigns via Shopify or WooCommerce integrations; nonprofits managing donor newsletters and event communications on a tight budget; marketing agencies handling multiple client accounts who benefit from role-based permissions and multi-domain management in a single dashboard.

SendGrid is Best For

Developers, SaaS companies, and high-volume senders who need rock-solid transactional email infrastructure and deep API control. SendGrid is the go-to when email delivery is mission-critical — think password resets, order confirmations, and system notifications that cannot afford to fail. Its enterprise-grade deliverability and SDK support across seven languages make it the industry standard for technical teams.

Specific use cases: SaaS platforms sending automated transactional emails triggered by user actions like sign-ups, billing events, or feature alerts; large ecommerce operations requiring real-time shipping notifications and high-volume order confirmations; enterprises and developer teams building custom email infrastructure that integrates directly into their product using SendGrid’s API and webhook event pipeline.

Mailjet vs SendGrid — What Real Users Are Saying

Overall rating:
4.0
/5
G2:
4.0
Trustpilot:
3.9
Capterra:
4.2
Overall rating:
3.1
/5
G2:
4.0
Trustpilot:
1.1
Capterra:
4.2

G2 Reviews Summary

Mailjet is generally viewed as a user-friendly and affordable email marketing tool, particularly suited for smaller teams or companies looking for straightforward campaign management. Many reviewers appreciate its intuitive interface, easy email template builder, and collaborative editing features that allow teams to work on campaigns together. Users also frequently mention that the platform is relatively quick to set up and offers good value compared to other email tools. 

However, some reviewers note limitations once their needs become more advanced. Common complaints include restricted automation capabilities, slower segmentation for large lists, and fewer advanced template or workflow customization options compared to larger marketing platforms. Several users also mention that managing or merging contact lists can be cumbersome.

Reviews of SendGrid highlight a different set of strengths. Users frequently praise its scalability, reliable deliverability, and powerful API capabilities, making it especially popular among developers and teams that need to integrate email functionality directly into applications. The platform is often described as robust and flexible, with strong analytics and integration options that support high-volume sending. 

That said, user feedback also points to several drawbacks. Some reviewers find the dashboard less intuitive than other marketing tools, and others report that certain features—such as automation workflows or approval processes—are limited compared to dedicated email marketing platforms. Pricing and support also come up as concerns in some reviews, particularly for growing businesses that see costs increase as their email volume scales.

Capterra Reviews Summary

Reviews of Mailjet frequently point to its straightforward interface and accessibility for smaller teams. Many users note that the platform is easy to set up and navigate, even for those without deep technical knowledge. The email editor and template tools are commonly described as simple and efficient for building campaigns quickly, while the platform’s pricing is often considered reasonable compared with larger email marketing tools. 

At the same time, feedback suggests that Mailjet may feel more limited as email programs become more complex. Some reviewers mention that advanced automation and segmentation features are less robust than in competing platforms, and list management or backend navigation can occasionally feel cumbersome.

Feedback on SendGrid, meanwhile, often centers on its strength as an infrastructure-level email platform. Many reviewers highlight the reliability of its sending engine, the flexibility of its API, and its ability to support high email volumes. These characteristics make it particularly popular with developers and companies that need to integrate email functionality into applications or platforms. The system’s integrations and documentation are also frequently mentioned as positives. 

However, Capterra reviewers also note several usability challenges. Some users find the interface less intuitive than traditional marketing tools, and others report difficulties with template management, reporting accuracy, or support responsiveness. Pricing can also become a concern as sending volumes grow.

Reddit Reviews Summary

Reddit discussion suggests Mailjet is usually seen as the simpler, more approachable option for smaller teams, solo builders, and low-volume senders. In recent threads, people praise it for easier setup, a friendlier UI than some developer-first tools, useful logging for transactional email, and a free or low-cost starting point for early-stage projects. 

At the same time, the negative side is fairly consistent too: some users report Gmail deliverability problems, blocked sends, thin documentation in specific areas, and weaker support on lower tiers. 

SendGrid gets described more often as a capable infrastructure tool for transactional email, APIs, and higher-volume sending, especially by developers and product teams. Recent Reddit threads give it credit for being reliable enough for app-based sending, useful for deliverability setup when properly configured, and strong on the API side. 

But the criticism is sharper than what shows up around Mailjet: users complain about Microsoft delivery issues, spam-folder placement, frustration with the UI, free-tier changes, and account or reputation problems after abuse incidents or exposed API keys.

FAQs

Mailjet is the more affordable choice for most small businesses. Its pricing is based on email volume only — contacts are unlimited on all paid plans — so you won’t face unexpected cost jumps as your list grows. The Essential plan starts at $17/month, compared to SendGrid’s Essentials at $19.95/month.

More importantly, SendGrid locks key features like dedicated IPs and advanced automation behind its $89.95/month Pro plan, while Mailjet includes more in its lower tiers. For businesses sending at moderate frequency to a growing list, Mailjet offers meaningfully better value.

Mailjet is significantly easier for non-technical teams. Its drag-and-drop editor, clean dashboard, and real-time collaborative editing are designed with marketers in mind — most users report being productive within hours, no developer required.

SendGrid was built primarily for developers and engineers, and its interface reflects that. Setting up campaigns, navigating the dashboard, and configuring automations all carry a steeper learning curve that frequently frustrates users without a technical background. If your team doesn’t have developer support, Mailjet is the clear choice.

Yes, migrating between Mailjet and SendGrid is possible but requires some manual effort. Contact lists can be exported as CSV files from either platform and re-imported into the other — the process is straightforward and well-documented on both sides.

Email templates are trickier: Mailjet uses MJML for its templates while SendGrid uses Handlebars syntax, so templates won’t transfer directly and will likely need to be rebuilt or adapted in the new editor. Both platforms provide migration guides to help with the transition, and Mailjet offers a dedicated migration guide specifically for users moving from SendGrid.

Reviewed by:
Why you can trust this review
  • Hands-on testing across multiple email marketing tools
  • Fair comparisons using a unified evaluation process
  • Insights verified with real user reviews from trusted sources
  • No sponsorships or affiliate ties
  • Clear, unbiased scoring and methodology
Learn more about our review methodology
Simple email marketing with affordable pricing
  • Premium features included
  • No hidden costs or usage limits
  • Scale from startup to enterprise
Simple email builder illustration