Sympa (Systeme de Multi-Postage Automatique) is an open source scalable and highly customizable modern mailing list manager capable of handling big setups: 20.000 lists with 700,000 subscribers. It is used to automate list management functions such as subscription, moderation and management of archives. Sympa also manages sending of messages to the lists, and makes it possible to reduce the load on the system.
Sympa’s features include bulk mailing, service messages and web pages defined by templates, subscriber information stored in a RDBMS, and an external antivirus plugin. Its web front-end offers a portal-like interface where the user can control all their list subscriptions and administrative powers in one place (i.e. one site per user, while Mailman, for example, creates one site per list).
Data is stored in a relational database such as MySQL, PostgreSQL, or Oracle.
Sites can customize Web and mail templates, authentication backends, and authorization scenarios. Dynamic mailing lists can use multiple backends (LDAP, SQL, files, lists, or others).
- Advanced MIME support, including digests, anonymization and S/MIME encryption.
- Builtin password-based authentication, HTTPS X.509 certificates or use of LDAP database or Single Sign-On CAS or Shibboleth servers.
- Archive management with web access and RSS feeds.
- Moderation and administration via email, web and SOAP interface.
- Multi-lingual, translated to more than 30 languages.
- Virtual domains (virtual robots).
- Local SQLite subscriber database or use of MySQL, PostgreSQL or LDAP.
- Integrated scripting language to extend and automate routines.
- Web interface called WWSympa providing homogeneous access for both users and admins to list overviews, customization, administration, searchable archives and optional web-based email reply form.
- Clean moderation and expiration processing.
- Customizable service messages (templates) for owner and listmaster.
- Sophisticated automatic bounce management.
- Data provisioning using LDAP, SQL or other data sources.
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