
Mailtrap
MailHog
Mailosaur
MailCatcher
FakeSMTP
Mailcatch.app
MailMug.net
An email and SMTP testing tool with API for developers.

Litmus
Email on Acid
MailChimp
250ok
Brevo
Sparkpost
Constant Contact
Inbox placement solutions from Return Path helps improve email deliverability and increases email marketing ROI.

Which is more popular?
Based on our record, Mailpit seems to be more popular. It has been mentioned 7 times since March 2021.
Website, pricing, platforms and company facts side by side.
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What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
Walkthroughs and reviews on video.
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(US) Designing the Signal Return Path Through the PC Board - Susy Webb - Expert Live Training
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Mailpit and Return Path. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


If you would rather not pay or depend on a hosted service for CI, run a local SMTP catcher such as Mailpit as a service container in the job. It is free, open source and has an API; the pattern above is the same. - Source: dev.to / 3 days ago
If you can run a container in your test environment, Mailpit is excellent, open source and runs next to your app, and it is the better choice when everything must stay on your own network. A hosted inbox earns its place when you cannot... - Source: dev.to / 11 days ago
I'm using Mailpit, an Open Source email testing tool. It can be installed following the instructions in the Installation section of the official repository, or by using Docker. - Source: dev.to / 9 months ago
Tracking Return Path since Mar 2021.
When comparing Mailpit and Return Path, you can also consider the following products.

Modern email delivery platform for developers and product teams
Compare Mailtrap to Mailpit or Return Path:

litmus tests and tracks your email campaigns, so you can always put your best design forward.
Compare Litmus to Mailpit or Return Path:

MailHog is an email testing tool inspired by MailCatcher, but easier to install.
Compare MailHog to Mailpit or Return Path:

We make the send button safer. For every campaign, every message, and every inbox, Email on Acid has the time-saving tools you need to put your best email forward.
Compare Email on Acid to Mailpit or Return Path:


MailChimp is the best way to design, send, and share email newsletters.
Compare MailChimp to Mailpit or Return Path: