Isync

Maintain local copies of remote IMAP folders w/synchronized flags

isync is a command line application which synchronizes a local maildir-style mailbox with a remote IMAP4 mailbox, suitable for use in IMAP-disconnected mode. Multiple copies of the remote IMAP4 mailbox can be maintained, and all flags are synchronized. TLS/SSL is supported via imaps or STARTTLS.

WWW http//isync.sourceforge.net/