Dovecot ManageSieve Server
- No need to let users log in via FTP/SFTP/etc, which could be difficult especially with virtual users.
- Scripts are compiled before they are installed, which guarantees that the uploaded script is valid. This prevents a user from inadvertently installing a broken Sieve script.
Dovecot's ManageSieve support is distributed in a separate package. Currently it also requires patching Dovecot sources, but this won't be necessary anymore in Dovecot v2.0. Dovecot's ManageSieve implementation is part of the Pigeonhole project. There exists also an alternative pysieved ManageSieve server that works with Dovecot.