Pigeonhole ManageSieve Server
The Pigeonhole project provides Sieve support for Dovecot, which allows users to filter incoming messages by writing scripts specified in the Sieve language (RFC 5228). The Pigeonhole ManageSieve service is used to manage a user's Sieve script collection. It has the following advantages over doing it directly via filesystem:
- No need to let users log in via FTP/SFTP/etc, which could be difficult especially with virtual users.
ManageSieve is a standard protocol, so users can manage their scripts using (hopefully) user-friendly ManageSieve clients. Many webmails already include a ManageSieve client.
- 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.