DBMail is a highly available Message Delivery Agent with an open source IMAP server, POP server, ManageSieve and LMTP servers using industry standard PostgreSQL, MySQL and Oracle for secure scaleable storage and LDAP for Single Sign-on. Essential for a fully featured mail server including sharing your all your devices, and mobile friendly with reduced traffic by synchronizing state changes within mailboxes. It has incoming email filtering with server side Sieve scripts so email goes in the right