Postal VS OpenSMTPD

Compare Postal vs OpenSMTPD and see what are their differences.

Postal

📮 A fully featured open source mail delivery platform for incoming & outgoing e-mail (by postalserver)

OpenSMTPD

This is official OpenSMTPD Portable repository. Forks, pull requests and other contributions are welcome! (by OpenSMTPD)
Our great sponsors
  • PopRuby - Clothing and Accessories for Ruby Developers
  • WorkOS - The modern identity platform for B2B SaaS
  • InfluxDB - Power Real-Time Data Analytics at Scale
Postal OpenSMTPD
42 18
14,019 471
3.4% 0.6%
9.6 9.2
6 days ago 8 days ago
Ruby C
MIT License GNU General Public License v3.0 or later
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.

OpenSMTPD

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

What are some alternatives?

When comparing Postal and OpenSMTPD 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.

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

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

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

MailHog - Web and API based SMTP testing

postfix - Postfix MTA by Wietse Venema

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

MailCatcher - Catches mail and serves it through a dream.

Courier MTA - Courier Mail Server

iRedMail - Full-featured, open source mail server solution for mainstream Linux/BSD distributions.