Postal vs Maildrop

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Postal		Maildrop
	Project
42	Mentions	1
14,116	Stars	738
3.2%	Growth	-
9.6	Activity	0.0
29 days ago	Latest Commit	-
Ruby	Language	CSS
MIT License	License	-

The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

Postal

Posts with mentions or reviews of Postal. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-09-26.

Postal: Open-source mail delivery platform for incoming and outgoing email
1 project | news.ycombinator.com | 13 Mar 2024

1 project | news.ycombinator.com | 7 May 2023
Postal – an open source postmark alternative
1 project | news.ycombinator.com | 14 Dec 2023
Are there any self-hosted, modern mail servers (similar to Sendgrid, AWS SES, etc.)?
1 project | /r/selfhosted | 29 Nov 2023
Issues with urandom + Docker due to DSM kernel
3 projects | /r/synology | 26 Sep 2023

It looks like I'm not the only person who has faced this. apache-based images require buster, for instance, and some docker images that rely on Ruby face issues too (for example, I decided to try setting up Postal but it looks like it's facing the same issues).
Show HN: Dittofeed – 1-Click deploy, self-host Mailchimp alternative
3 projects | news.ycombinator.com | 19 Sep 2023

A great self-hosted pairing might be Postal https://github.com/postalserver/postal
Breaking Free: How I Self-Hosted My SMTP Server with Haraka. Send thousands of emails per second at the cost of pennies.
2 projects | /r/mailserver | 22 May 2023

Previously I’ve used Postal, which is not simple but okay. Can I do better? Isn’t why I’m writing this?!
Is there something like postal but with a full API?
1 project | /r/sysadmin | 13 May 2023

This is postal: https://github.com/postalserver/postal
What's the simplest possible dockerized SMTP email relay?
2 projects | /r/docker | 7 May 2023

Try Postal.
Are there any self-hosted alternatives to Mailchimp or Klaviyo?
2 projects | /r/selfhosted | 22 Apr 2023

https://github.com/postalserver/postal is my go to favorite.

Maildrop

Posts with mentions or reviews of Maildrop. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-02-26.

CSS Deep
2090 projects | dev.to | 26 Feb 2021

m242/maildrop - MailDrop is an open-source, scalable, high-performance version of Mailinator.

What are some alternatives?

When comparing Postal and Maildrop you can also consider the following projects:

docker-mailserver - Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) running inside a container.

Dovecot - Dovecot mail server

Haraka - A fast, highly extensible, and event driven SMTP server

MailHog - Web and API based SMTP testing

OpenSMTPD - This is official OpenSMTPD Portable repository. Forks, pull requests and other contributions are welcome!

Listmonk - High performance, self-hosted, newsletter and mailing list manager with a modern dashboard. Single binary app.

Exim - Exim Mail Transport Agent - source, testsuite and documentation

formspree - The successor to this repository is actively maintained at https://formspree.io. Its source code is not available

Mail-in-a-Box - Mail-in-a-Box helps individuals take back control of their email by defining a one-click, easy-to-deploy SMTP+everything else server: a mail server in a box.

Courier MTA - Courier Mail Server

MailCatcher - Catches mail and serves it through a dream.