mail-client
mail-client / claws-mail : An email client (and news reader) based on GTK+
- Build plugin for sieve filter support
net-mail
net-mail / cyrus-imapd : The Cyrus IMAP Server
- Enable sieve support
net-mail / dbmail : Fast and scalable sql based email services
- Enable sieve filter support
net-mail / dovecot : An IMAP and POP3 server written with security primarily in mind
- Add sieve support
sci-mathematics
sci-mathematics / yafu : Yet another factoring utility