Archiveopteryx is a high-quality mail server, well suited to archiving.
It stores mail in a database, and provides access to it using IMAP and POP (and uses other standard protocols). Archiveopteryx runs on Unix/Linux servers, and works with clients on Windows, Unix, Linux, MacOS and many more.
The installation guide has more details.
Please let email@example.com know if you have any questions.
Last modified: 2010-11-19