Evolution Mailer

Interoperable:
IMAP, POP, Local spool.
Full support for HTML mail.
In-line display of attachments using components.
Automigration from other mailers.

Secure:
S/IMAP, S/POP, S/SMTP.
GPG/MIME and S/MIME.

Functional:
Multiple account support.
Threading.
Quick search via indexing.
VFolders.
Filters.
Spell checker.
Disconnected operation.