The Bottom Line
- Wanderlust supports many protocols and mail files with unlimited customization options
- Strong IMAP support (both on- and offline), and Wanderlust works with most spam filters
- Wanderlust includes good international language support
- A steep learning curve is waiting if you are not used to Emacs
- Wanderlust is not too well documented
- Wanderlust is an email and news client for Emacs supporting POP, IMAP, NNTP, MH and maildir.
- Access to all sources happens through a unified interface in Wanderlust.
- Extensive caching make Wanderlust fast for even huge mailboxes.
- Supports offline operation on IMAP, can search on the server, download partial messages, and more.
- Wanderlust supports "virtual" folders (collecting messages based on conditions), compressed folders.
- Wanderlust can filter, expire and archive mail automatically and supports scoring and spam filters.
- Works well with BBDB, supercite, X-Face and other email packages and is extremely configurable.
- Wanderlust lets you define templates for often used messages.
- Wanderlust supports Emacs 20.2+ and XEmacs 20.4+ and Japanese Emacs flavors (on all platforms).
Guide Review - Wanderlust 2.14.0 - Free Email Program
Wanderlust supports a number of message sources including POP and IMAP — the latter in particular is well implemented, fast and ready for offline use. Of course you get Emacs' editing power, the scoring you know from Gnus, and Wanderlust works with most spam filters (including SpamAssassin and bsfilter). Wanderlust also supports mail expiring and archiving, and you can set up virtual folders that show all mail matching certain criteria.
The only downside is Wanderlust's documentation, which is a bit meager and doesn't help much with the learning curve (if you are new to Emacs).