Amazon SES is a cost-effective, cloud-scale email service built on AWS infrastructure.

Amazon SES is a cost-effective, scalable email service built on AWS infrastructure. It supports API and SMTP sending, dedicated IPs, and deep AWS integration.

Send emails using SMTP or the SES API, with support for raw and templated messages.

SMTP and API sending

Options for shared, dedicated, and bring-your-own IP addresses for complete control over sender reputation.

Dedicated IPs

Receive emails and trigger actions with Lambda functions or store in S3.

Email receiving

Tight integration with EventBridge, CloudWatch, and other AWS services for event-driven workflows.

AWS service integration

Group sending rules and track metrics per configuration set for granular control.

Configuration sets

Automated deliverability insights and recommendations powered by AWS.

Virtual deliverability manager

Amazon SES

Free (first 12 mo)

Pay-as-you-go

Mailersend is an intuitive transactional email and SMS service by Mailgun, designed for growing businesses.

MailerSend is a transactional email service for sending invoices, receipts, and password resets. It includes a drag-and-drop editor, SMS support, and email verification.

Create responsive email templates with an intuitive visual editor that supports team collaboration and versioning.

Drag-and-drop editor

Send transactional emails and SMS through a unified RESTful API with support for attachments, personalization, and bulk sending.

Email and SMS API

Validate recipient addresses before sending to reduce bounces and improve deliverability. Charged separately.

Email verification

Real-time email logs and analytics with export support for opens, clicks, and deliverability metrics.

Activity tracking and analytics

Parse and respond to received emails via webhook for inbound email processing.

Inbound routing

Built-in templating with dynamic variables and conditional logic for personalized content.

Dynamic templating

Mailersend

Free

Hobby

Starter 50K

Starter 100K

Starter 250K

Professional 500K

Professional 1M

Professional 1.5M

Professional 2M

Custom

Mailgun is a developer-focused email API platform owned by Sinch, known for flexible sending and receiving capabilities.

Mailgun is a developer-focused email API for sending, receiving, and tracking transactional emails. It offers flexible SDKs, email validation, and inbound routing.

Flexible RESTful API and SMTP relay for sending, receiving, and tracking emails with comprehensive SDKs.

Email API and SMTP

Verify email addresses in real time to reduce bounces and improve deliverability. Charged separately from email sends.

Email validation

Parse and route incoming emails to your application using customizable rules.

Optimize email delivery timing for better engagement with advanced send time features.

Send time optimization

Track opens, clicks, unsubscribes, and other engagement metrics with real-time webhook delivery.

Email tracking and webhooks

Choose between EU and US-specific sending regions for data residency compliance.

EU and US sending regions

Mailgun

Basic 10K

Foundation 50K

Foundation 100K

Scale 250K

Scale 500K

Scale 750K

Scale 1M

Scale 2.5M

Mailjet is a collaborative email platform with real-time editing and combined transactional and marketing capabilities.

Mailjet is an email platform with a collaborative template editor and flexible API. It supports transactional and marketing emails with EU data residency options.

Multiple team members can edit templates and leave comments simultaneously with a collaborative editor.

Real-time collaboration

RESTful API and SMTP relay for sending transactional and marketing emails with support for attachments and inline images.

Built-in A/B testing and contact segmentation tools for optimizing email campaigns.

A/B testing and segmentation

Dynamic content with logic and variables, plus a drag-and-drop visual editor for responsive templates.

Advanced email templating

GDPR-compliant infrastructure with EU-only data processing for strict data residency requirements.

EU data residency

Webhooks for real-time event tracking including opens, clicks, bounces, and spam complaints.

Real-time webhooks

Mailjet

Essential

Essential 50K

Premium 100K

Premium 250K

Premium 500K

Premium 1M

Premium 2.5M

Premium 5M

Mailtrap is an email platform combining safe testing and sandbox environments with production sending capabilities.

Mailtrap is an email delivery platform for testing, sending, and monitoring email infrastructure. It offers a sandbox environment, analytics, and API-based sending.

Inspect and debug emails in a safe sandbox environment before sending to real users.

Email testing sandbox

Flexible API with official SDKs for Python, Ruby, PHP, Node.js, Elixir, C#, and Go, plus 25+ ready-to-use code snippets.

RESTful API and SMTP

Separate streams for transactional and bulk emails to maintain deliverability and sender reputation.

Dedicated email streams

30-day email history with helicopter-view dashboards and drill-down reports by mailbox provider.

Deliverability analytics

SOC 2 and ISO 27001 certified, GDPR compliant across all plans.

Security and compliance

Native integrations with Supabase, n8n, Make, Zapier, Heroku, and Vercel.

Platform integrations

Mailtrap

Basic 50K

Basic 100K

Business 250K

Business 500K

Business 750K

Enterprise 1.5M

Enterprise 2.5M

Mandrill is a transactional email add-on for Mailchimp, suited for teams already using the Mailchimp platform.

Mandrill is a transactional email API from Mailchimp. It offers reliable delivery, advanced analytics, and tight integration with Mailchimp marketing campaigns.

Send personalized transactional emails through a reliable API with merge tags and inbound processing.

Transactional API

Share templates and data between Mailchimp marketing campaigns and Mandrill transactional emails.

Mailchimp integration

Apply rules to inbound or outbound emails for automated processing and routing.

Advanced rules engine

Automatically track clicks and conversions with custom tracking domains.

Click tracking

IP address warming, dedicated IPs, and IP address pools for fast, reliable delivery at scale.

Global delivery infrastructure

Real-time webhooks for email events to respond to engagement and delivery events from your system.

Webhooks

Mandrill

25K block

50K block

100K block

250K block

500K block

1M block

2M block

3M block

4M block

5M+ block

Postmark is a transactional email service focused on fast, reliable delivery with transparent pricing.

Postmark is a fast and reliable email delivery service built for transactional email. It offers separate message streams, delivery analytics, and industry-leading speed.

Purpose-built for transactional email with industry-leading delivery speeds.

Transactional email

Separate transactional and broadcast emails into distinct streams with separate infrastructure for better deliverability.

Message streams

Parse incoming emails and route them to your application via webhooks.

Inbound email processing

Use pre-built or custom templates with a simple templating language.

Email templates

Paid DMARC monitoring service to track your email sending reputation and proactively address issues.

DMARC monitoring

Receive and process engagement and delivery events via webhooks to synchronize with your system.

Webhook integrations

Postmark

125K

300K

700K

1.5M

Enterprise

Resend is a modern email API built for developers, with React Email support and a focus on simplicity.

Resend is a modern email API built for developers. It supports sending emails with React components, HTML, and plain text across multiple domains and regions.

Build and render responsive email templates using React components with the open-source React Email framework.

React Email

Simple, modern API with SDKs for popular languages including Node.js, Python, and Go.

RESTful API

Easy domain verification and DNS configuration with support for multiple domains and four sending regions.

Multi-domain support

Built-in webhook support for real-time tracking of delivery and engagement events.

Automatic handling of bounces, complaints, and unsubscribes to protect sender reputation.

Suppression lists

SMTP relay available in addition to API-based sending for flexible integration.

SMTP relay

Resend

Pro 100K

Scale 200K

Scale 1.5M

SendGrid is a cloud-based email delivery platform owned by Twilio, known for high-volume transactional and marketing email.

SendGrid delivers transactional and marketing emails through one of the largest cloud-based email platforms. It offers a robust API, SMTP relay, and deliverability tools.

Integrate with SendGrid using standard SMTP or their Web API for high-volume sending.

SMTP relay and Web API

Validate email addresses before sending to reduce bounces and protect your sender reputation. Billed separately from email sends.

Email validation API

Create reusable email templates with a visual editor, Handlebars syntax, and a streamlined version control and approval process.

Dynamic templates

Monitor inbox placement rates with AI-powered intelligent delivery and actionable tips to improve deliverability.

Deliverability insights

Receive real-time notifications for email events like opens, clicks, bounces, and more.

Event webhooks

Receive and parse incoming emails with SendGrid's inbound API.

SendGrid

Free (60 days)

Essentials 50K

Essentials 100K

Pro 300K

Pro 700K

Pro 1.5M

Pro 2.5M

Premier

SparkPost is a data-driven email delivery platform with advanced analytics and predictive tools for high-volume senders.

SparkPost is a high-volume email delivery service with predictive analytics and an advanced rules engine. It offers dedicated IPs, subaccounts, and on-premise options.

Machine learning-powered engagement prediction and health scores to optimize send times.

Predictive analytics

Flexible sending via REST API or SMTP with advanced features like A/B testing.

Isolate sending streams for multiple applications under a single consolidated account.

Subaccounts

A full suite of template management tools for creating and maintaining email templates.

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