mailman
Mailman -- the GNU mailing list manager
Decision gist · record as of 2026-08-14
Yes, if you need to self-host a mailing list server and accept GPLv3 licensing. Mailman is production-stable and supports current Python versions, but dormant maintenance (681 days) means you should verify that it meets your email standards and security requirements before deploying. Not suitable if you need active upstream support or rapid bug fixes.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires system-level SMTP service (aiosmtpd), database backend (SQLAlchemy), and typically runs as a daemon; not a library for embedding in other applications.
- Low install friction with a pure-Python wheel distribution.
- Dormant maintenance status (681 days since last release) means no active development, though the package is marked Production/Stable and supports current Python versions (3.9–3.12).
License · maintenance · safety
GPLv3 (copyleft) — GPLv3 copyleft license requires that any derivative work or distribution must also be open-source under compatible terms; suitable for internal or public-facing deployments where GPL compliance is acceptable.
last release 2024-10-02 (681 days)
0 known vulnerabilities (OSV.dev, 2026-08-14) · 331,542 downloads/mo, #7,515 on PyPI
Alternatives
Verify before relying
pip install mailman
from mailman.core.mailmanctl import main
main()- Exact deployment requirements and system dependencies beyond Python packages.
- Whether dormant status (681 days) affects security patching or compatibility with recent email standards.
- Performance characteristics and scalability limits for large subscriber bases.
What it is and what it does
Mailman is the GNU mailing list manager—a server application for hosting email discussion lists. It handles subscription management, message moderation, archiving, and delivery to subscriber lists, with both web and command-line administration interfaces. It is designed for system administrators running POSIX servers and is distributed under GPLv3.
The package depends on 22 runtime libraries including aiosmtpd for SMTP handling, SQLAlchemy for data persistence, Falcon for the web API, and Zope components for configuration and extensibility. It runs as a daemon process and is not intended as an embedded library. The codebase has been in production use since 2008, though recent development is dormant.
Use it for
- Host internal team discussion lists with moderation and archive access.
- Run public mailing lists for open-source projects or communities.
- Manage subscription workflows and bounce handling for large email campaigns.
- Provide web-based list administration and subscriber self-service portals.
- Archive and search historical email discussions for compliance or reference.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you need to self-host a mailing list server and accept GPLv3 licensing.
Mailman is production-stable and supports current Python versions, but dormant maintenance (681 days) means you should verify that it meets your email standards and security requirements before deploying. Not suitable if you need active upstream support or rapid bug fixes.
Install
mailman on PyPI
Before you install
Low install friction with a pure-Python wheel distribution. Dormant maintenance status (681 days since last release) means no active development, though the package is marked Production/Stable and supports current Python versions (3.9–3.12).
Requires system-level SMTP service (aiosmtpd), database backend (SQLAlchemy), and typically runs as a daemon; not a library for embedding in other applications.
License in practice
GPLv3 copyleft license requires that any derivative work or distribution must also be open-source under compatible terms; suitable for internal or public-facing deployments where GPL compliance is acceptable.
Quickstart
pip install mailman
from mailman.core.mailmanctl import main
main()Verify before relying
- Exact deployment requirements and system dependencies beyond Python packages.
- Whether dormant status (681 days) affects security patching or compatibility with recent email standards.
- Performance characteristics and scalability limits for large subscriber bases.
Package facts
| License | GPLv3 copyleft |
| Python support | Supports the current Python release >=3.9 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 22 packagesaiosmtpdalembicatpublicauthheadersauthresclickdnspythonfalconflufl.bounceflufl.i18nflufl.lockgunicornlazr.confignntplibpasslibpython-dateutilrequestssqlalchemyzope.componentzope.configurationzope.eventzope.interface |
| Maintenance | Dormant 681 days since the last release |
| First released | |
| Downloads | 331,542 / month, #7,515 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 5 - Production/StableIntended Audience :: System AdministratorsLicense :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)Operating System :: POSIXProgramming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.9Topic :: Communications :: Email :: Mailing List ServersTopic :: Communications :: Usenet NewsTopic :: Internet :: WWW/HTTP :: WSGI :: Application |
Evidence: mailman-3.3.10-py3-none-any.whl
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