Catch local emails

HELO exposes an SMTP server and catches the outgoing emails from your application instead of sending them to their actual recipient.

Unlimited Inboxes

Receive emails in a dedicated inbox per application by setting a unique name per project. There is no limit on the number of inboxes.

Simple content Review

HTML representation, text, source code, raw, headers–we got you covered. Check your emails before you deploy to production.

View Inspector

Install our open-source helper package to debug Laravel views or create own helpers to debug mails of your favorite framework.

Link Checker

The automated link check verifies that all links in an email are valid and return an HTTP 200 status code. Don't send emails with broken links again.

Spam Report

If activated, HELO automatically checks the Apache SpamAssassin score of your incoming emails. Never lose a mail in your users spam box again.

Forward Emails

Forward emails from HELO to team mates or clients for review. Send them to a testing service to see how they look in different email clients.

Share Emails and Inboxes

This feature requires HELO Cloud Share multiple emails with all the information that you see in HELO. Test all emails of your application, and share them with your clients and colleagues easily.

Personal US$14.99

• Catch local emails
• Spam report
• Unlimited inboxes
• Simple content review
• View Inspector
• Link checker
• Forward emails
• Includes updates for a year
• Commercial use
• Activate on 1 computer

Professional US$39.00

• Catch local emails
• Spam report
• Unlimited inboxes
• Simple content review
• View Inspector
• Link checker
• Forward emails
• Includes updates for a year
• Commercial use
• Share your local emails and inboxes
• Unlimited remote mailboxes
• Activate on 3 computers
• HELO cloud for 1 year

Configure your testing environment in 5 minutes

Each Mailtrap account comes with an individual testing environment. Integrate it with your app in just a few clicks.

Keep all testing data organized in one place

Create individual inboxes for different environments or review servers and group them into relevant projects.

Quickly integrate with Mailtrap API

Get started quickly with our well-documented API and configure automated testing with unlimited API calls.

Dig into both the content and source of your emails

View messages, check spam scores, validate headers, analyze the HTML support across email clients, and more.

Easily share test emails with your team

Manage access to your inboxes for colleagues or clients. Send selected test emails to whitelisted real recipients.

Test your email sending service

Send emails to Mailtrap directly from your CRM or email sending service. Simulate sending to multiple recipients.

Free

500 email test 5 sending rate-limit /10 second 1 Inbox

Individual $9.99/mo

5K email test 10 sending rate-limit /10 second 5 Inbox

Team $24.99/mo

15K email test 25 sending rate-limit /10 second 15 Inbox 20 Team Member

Business $49.99/mo

50K email test 50 sending rate-limit /10 second 40 Inbox 40 Team Member

Premium $99.99/mo

100K email test 100 sending rate-limit /10 second 80 Inbox 80 Team Member

Enterprise $299.99/mo

10M email test 150 sending rate-limit /10 second 300 Inbox 999 Team Member

• Configure your application to use MailHog for SMTP delivery
• View messages in the web UI, or retrieve them with the JSON API
• Optionally release messages to real SMTP servers for delivery

Free and Open Source

• Email Previews before sending
• Email Testing
• Email Spam Word Check

Free Forever

• Get 3 previews per day or 5 previews per month
• For individuals only
• Add up to 1 project(s)
• Community support

Starter $24.99/month

• Get 30 previews per day or 1000 previews per month
• For agencies and small teams
• Add up to 10 team members
• Live-chat support

Startup $49.99 /month

• Get 100 previews per day or 3000 previews per month
• For growing teams
• Add up to 20 team members
• Priority support

First mail catcher GRPD compliant and eco-designed to facilitate the work of developers.

Features designed for and by developers :

• Centralize your testing environments From your local to the pre-production, organize your mailboxes in Pacomail. Check the content of your emails (links, dynamic variables, images).
• Make sure your emails are sent correctly After connecting Pacomail to your application, send emails as in real life. Perform load tests.
• Test emails with your collaborators in one place From the developer to the product manager, make it easy to test by bringing your teams together on projects or mailboxes.
Invite external collaborators or transfer your emails.
• Correct integration errors with live coding Once the email has been opened, use functions specifically developed for email integration: display of tables, Focus mode.
• Analyse the HTML content of your emails The Debug mode allows you to analyse the compatibility of your HTML code on different email clients. Apply the suggested quick fixes to improve it. Don't get the wrong recipients during your development tests !

30 day free trial

• Free plan : One mailbox - 50 emails/box - 100 tests/month - 3 users/box
• Team plan: 15 mailboxes - 200 emails/box - 5k tests/month - 8 users/box
• Pro plan: 100 mailboxes - 600 emails/box - 10k tests/month - 20 users/box

Test new user signups

Email verifications, passwordless signins, etc.

Test transactional and drip emails

Are they triggering when expected?

Test delivery and spam scores

Are emails reaching the inbox?

How Debug Mail work

The service provides command-line access to the virtual SMTP-server. The sender and receiver addresses can be anything, since no real mailings are sent. The technology used by application developers does not matter, the service will work with PHP, Python, Ruby, Node.js, .NET and many other programming languages and frameworks.

Sharing options

Sharing is the main feature of DebugMail. To see what the service and other mailings will look like, just connect the right users to the project in the service, and they will see the same thing as the developer who is testing the mailing.

What you can do in Debug Mail

• Send emails to non-existent test addresses instead of real ones.
• Set up email distribution lists with colleagues using team access.
• Work together with other developers on the service.

• Free plan - $0
• Silver plan - 2 weeks trial period, after $2 per user per month
• Gold plan - $5 per user per month

We provide a free Silver plan for OSS projects.

Developers, QA and CI/CD Pipelines. All taken care of with Imitate Email.

Developers build better software, quicker, with our sandbox SMTP server and Web App

Testers and End Clients easily test email based application flows with the embedded web widget

Integration Testing is a breeze with programmatic IMAP support, web sockets and SMTP.

Solo developers can send 15 emails a day for free forever with access to all of the features. Paid plans available for more emails and for teams.

Instantly preview your campaigns in popular email clients

Whether you are an email team of one, or a team of many, Litmus gives you the power to test and preview 100+ popular email clients—including Dark Mode—from a single spot. In seconds. Plus, get proactive recommendations based on Litmus data to ensure you’re optimizing for the most important clients and devices and leverage Email Testing Profiles to focus your testing where you need it most.

Get an automated, comprehensive QA test

Run an automated pre-send Litmus Test to check links, images, tracking, and other critical elements to optimize your email for opens and conversions. Plus, maximize the impact of every email by confirming that content is accessible to subscribers of all abilities—including those with color vision deficiency.

Ensure your email reaches the inbox—not the junk folder

Emails that don’t reach your subscribers would be such a waste. With Litmus Spam Testing, scan your email against 25+ different tests and get notified of any issues. Plus, use actionable, contextual advice to fix any problems identified.

Accelerate your email testing process with integrations

Test your email wherever you build to catch and fix any issues early in your email workflow, reducing review cycles and saving time. Review campaigns alongside your ESP or code editor with the Litmus Chrome Extension. Easily import emails to Litmus for review and final pre-send testing with ESP Sync. The result? Faster approvals, more successful deliveries, and better-than-ever conversions.

Monthly

Annually

EMAIL PREVIEWS

Test without limits

Every inbox displays emails differently. With unlimited testing and previews on the latest clients and devices, Email on Acid helps ensure your messages display perfectly in any inbox.

COLLABORATION

Collaborate more effectively

Email on Acid makes teamwork easy. Share, comment, edit, and resolve directly within the app with unlimited share links and customizable permissions.

EMAIL VERIFICATIONS

Verify your contact lists

Don’t let bad email addresses ruin your deliverability. Verify your lists with the fastest, most accurate email verification platform available with InboxReady.

DELIVERABILITY SERVICES

Get expert guidance

With available Deliverability Services from InboxReady, our email professionals will help develop and implement a tailored email strategy centered around your business’ unique needs.

Monthly

Annually

REPUTATION DASHBOARD

Protect and monitor your sender reputation

• Track domain and IP reputation seperately
• Instantly spot changes to important reputation metrics
• See your Google Postmaster Tools and SNDS data directly
• Pull in ISP feedback loops (FBLs) that matter to you
• Monitor unsubscribes, bounces, open, and click rates with 20+ ESP integrations

DMARC MONITORING

Find out who's sending from your brand's domain

• Monitor DMARC compliance and failure rates
• Uncover sources sending unauthenticated email
• Resolve SPF or DKIM issues causing DMARC failures
• Detect and prevent email phishing or spoofing attacks

BLACKLIST CHECK

Find out immediately if your domain or IP is blacklisted

• Check your domain or IP against the most influential blacklists
• Follow actionable guidance to get delisted
• Respond quickly with automatic Slack, email, or webhook alerts

INBOX PLACEMENT

Predict if your email goes to spam or the Promotion tab

• Find and fix potential inbox placement problems
• Run seed list test for Gmail, Yahoo, Outlook, and other major providers
• Unlimited inbox placement tests

CLIENT PREVIEWS

Perfect your email's design across devices and clients

• Preview campaigns in popular email clients
• Find design problems before sending
• Test as much as your want with unlimited client preview tests

Monthly

Annually