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Transactional Email Feature

We are excited to announce that Transactional Emails are now available across all Sender plans—from Free to Enterprise.

Whether you need to send password resets, order confirmations, or shipping notifications, you can now manage everything within the same ecosystem you use for your marketing campaigns. We’ve designed our transactional infrastructure to ensure high-speed delivery, robust security, and developer-friendly integration.

Here is an overview of the features available and a breakdown of plan-specific limits.

What features are included?

Our transactional email suite is built to make your life easier, whether you are a developer setting up the API or a marketer analyzing delivery reports.


  • API & SMTP: Choose the setup that fits your workflow. Hit our REST endpoint or use standard SMTP relay.



  • Libraries & Documentation: We provide setup guides to help you get up and running quickly.


Powerful Content & Personalization


  • Dynamic Templates: Manage your transactional templates (like invoices or welcome emails) directly in Sender. You can update copy or design without touching your codebase.



  • Liquid Syntax: easily drop in variables like customer names, order totals, or conditional content based on user data.



  • Attachments: Send PDFs, invoices, or documents up to 10MB. All files are virus-scanned and transferred securely.


Analytics & Tracking


  • Real-time Analytics: Track every step from “send” to “inbox.”



  • Detailed Logs: Search and filter records of every email sent to troubleshoot delivery issues.



  • Webhooks: Get instant notifications when emails are delivered, opened, or clicked to trigger follow-up actions in your own systems.


Security & Deliverability


  • High-Priority Sending: We utilize a low-latency send path and smart queuing to ensure time-sensitive emails (like OTPs) land instantly.



  • Built-in Authentication: We handle SPF, DKIM, and DMARC support to protect your domain reputation.



  • Suppression Management: Automatic handling of bounces and complaints to keep your list clean.


Feature Availability by Plan

While transactional email capability is unlocked for all users, specific limits regarding data retention, team access, and infrastructure vary by plan tier.

Features Available on ALL Plans

Every plan (Free, Standard, Professional, Enterprise, and Prepaid credits) includes:


  • Full access to API and SMTP.



  • Dynamic Templates and Liquid syntax.



  • Real-time analytics and engagement tracking.



  • Standard Domain Authentication (SPF/DKIM/DMARC).



  • Unlimited Custom Sending Domains.



  • TLS Encryption and GDPR Compliance.


Plan-Specific Limits

Below is a breakdown of how the plans differ regarding advanced features and retention limits:

Free Plan


  • Webhooks: 1 Event Webhook.



  • Teammate Permissions: 1 User.



  • Log & Bounce Retention: 1 Day.



  • Support: Standard knowledge center access.


Standard & Prepaid Credit Plans


  • Webhooks: 5 Event Webhooks.



  • Teammate Permissions: 3 Users.



  • Log & Bounce Retention: 1 Day.



  • Support: Access to deliverability support.


Professional Plan


  • Webhooks: Unlimited.



  • Dedicated IP: 1 Included (Pooled IP also available).



  • Teammate Permissions: 10 Users.



  • Log & Bounce Retention: 5 Days.



  • Support: Priority deliverability support.


Enterprise Plan


  • Webhooks: Unlimited.



  • Dedicated IP: 1 Included.



  • Teammate Permissions: Unlimited.



  • Log & Bounce Retention: 30 Days.



  • Security: Single Sign-On (SSO) included.


Ready to get started?

To begin sending transactional emails, navigate to the Transactional emails section in your dashboard to generate your API keys or configure your SMTP settings.

That’s it!

If you got stuck on a specific task or can’t find a way to execute a particular job, contact our support team via LiveChat or support@sender.net we’re here to help 24/7.