48
I Use This!
Moderate Activity
Analyzed about 12 hours ago. based on code collected about 13 hours ago.

Project Summary

The Courier mail transfer agent (MTA) is an integrated mail/groupware server based on open commodity protocols such as ESMTP, IMAP, POP3, LDAP, SSL, and HTTP. Courier provides ESMTP, IMAP, POP3, Webmail, and mailing list services within a single consistent framework. Individual components can be enabled or disabled at will. Courier implements basic Web-based calendaring and scheduling services integrated in the Webmail module.

Tags

collaboration debian email filter imap linux mta pop3 server site_management smtp systems_administration thunderbird unix

In a Nutshell, Courier Mail Server...

Project Security

Vulnerabilities per Version ( last 10 releases )

Project Vulnerability Report

Security Confidence Index

Poor security track-record
Favorable security track-record

Vulnerability Exposure Index

Many reported vulnerabilities
Few reported vulnerabilities

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About Project Security

Languages

C
44%
C++
42%
HTML
5%
10 Other
9%

30 Day Summary

Jan 7 2026 — Feb 6 2026

12 Month Summary

Feb 6 2025 — Feb 6 2026
  • 193 Commits
    Up + 127 (192%) from previous 12 months
  • 3 Contributors
    Up + 2 (200%) from previous 12 months

Ratings

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