Best Transactional Email Products in 2025

Learn why more developers choose SendGrid for their email deliverability service to send transactional emails triggered by web apps. Get started for free.

Key SendGrid features:

Scalability API Integration Deliverability Analytics

Enterprise Email Warmup. Sender Domain Reputation Repair Tool to get out of spam and see open rates more than double in 4 to 14 days. We engage with your emails to teach mailbox providers not to send your email to the spam or the promotions folder.

Key InboxAlly features:

Increase deliverability on any platform Create multiple sender profiles to accomodate all of your domains/IPs Works with any email sending service Use your own content in emails you send

Try for free paid Free Trial $149.0 / Monthly (Send to 100 of our unique seed emails per day)

A set of powerful APIs that enable you to send, receive and track email from your app effortlessly whether you use Python, Ruby, PHP, C#, Node.js or Java.

Key Mailgun features:

Scalability API Flexibility Deliverability Analytics and Tracking

Open Source

Scale your business email & marketing messages with Amazon Simple Email Service (SES), a cost-effective and reliable cloud email service. Sign up today.

Key Amazon SES features:

Cost-Effective Scalable High Deliverability Integration with AWS Services

Open Source

Innovative online Email Marketing solution to manage your contacts, create & send your newsletters and track your results. More than 80 000 clients. Best prices and attractive features.

Key Brevo features:

User-Friendly Interface Comprehensive Analytics Customization Options Automation Features

All-in-one email service provider that provides maximum insight and deliverability results for both marketing and transactional emails.

Key Mailjet features:

User-Friendly Interface Real-Time Analytics API Integration Template Management

Fast Transactional Email. Independent, privacy-focused, and hosted in the EU.

Key MailPace features:

Privacy-focused User-friendly Reliable delivery Simple pricing

Open Source freemium $10.0 / Monthly (10,000 emails)

MailChimp is the best way to design, send, and share email newsletters.

Key MailChimp features:

Ease of Use Automation Features Comprehensive Reporting Integrations

Email for developers.

Key Resend features:

Ease of Use API Flexibility Deliverability Scalability

AhaSend is a pay-as-you-go Transactional Email Service Provider. Experience fair, transparent pricing and superior delivery with AhaSend.

Key AhaSend features:

Domains Webhooks Message routing Team members

freemium

Postmark is the easiest and most reliable way to be sure your important transactional emails get to the inbox. Simply & reliably parse recieved email to JSON for your webapp.

Key Postmark features:

High Delivery Rates Fast Sending Speed User-Friendly Interface Detailed Analytics

Open Source

The best way to send transactional emails directly from your code.

freemium

Mandrill is a new way for apps to send transactional email. It runs on the delivery infrastructure that powers MailChimp.

Key Mandrill features:

Scalability Deliverability Integration Analytics

SMTP2GO is the scalable, reliable email deliverability solution. Worldwide servers, a robust API, and powerful reporting set us apart. Try our free plan!

Key SMTP2GO features:

Reliability Global Infrastructure Detailed Reporting Easy Integration