Python API for Sendmail Milters. Related modules provide features such as content filtering, SPF, and reputation tracking. Changes are posted first to https://github.com/sdgathman/pymilter and related repos.
TMDA is an open source anti-spam system and local mail delivery agent written in 100% pure Python. TMDA combines whitelists, blacklists, a challenge/response system, and special-purpose e-mail addresses called "tagged addresses" to thwart spam.
AppSignal's MCP server hands Claude, Cursor, or Zed your real errors, traces, and the deploy that shipped them. AI writes the fix; you review the diff.
SMTPUTF8 is email programs that can support internationlized email addresses in UTF-8.
SMTPUTF8 permits the use of email addresses that include non-ASCII characters such as Chinese, Japanese, and Korean (CJK).
elspy is an extension to the Exim MTA that allows Exim users to supply a local_scan() function written in Python instead of C. (Exim's local_scan() API lets sysadmins supply site-specific code for approving/rejecting email messages at SMTP time.)
Virtual Qmail - virtual domains management system for qmail. It is designed to be fast, reliable, and easy to use. Includes software allowing users to manage their accounts via WWW.
A python wrapper for Local Delivery Agents (for example, maildrop), which allows an unlimited number of extensions on a mail account with dot-qmail-like functionality.
PyEximon is a GNOME monitor/manager for the popular MTA, Exim. It includes real-time status graphs and log updates, colored log browsing, hierarchial message lists, as well as a graphical interface to common message functions.
Working as a courier-mta frontend, QUICA can make a quick and friendly to use mail server. Tasks like creating accounts and forwards can be done easily. QUICA manages domains separately , allowing the delegation of each domain to different people.
ISOS is an e-mail and web server. It is designed for ease of use and provides a quick way to e-presence for small businesses and organizations who lack the experience to benefit from high performance, open source software such as Sendmail, Courier Mail,
FrozenPop is a simple and easy to use POP3/SMTP server. Geared to accommodate multiple domains without having to create individual system accounts, FrozenPop installs < 5 mins. With MySQL authentication, creating users is simple.
mailgate is a set of Python scripts we used at my former company to transfer email a) from a POP3 account to our internal mail server, b) from a POP3 account to a mailbox file and c) from a mailbox file to a SMTP server.