Mailismus - Version 1.6.2 Mailismus is a high-speed, high-volume mailserver which supports SMTP, IMAP and POP3. It is secure (supports SSL and STARTTLS, SMTP-Auth with SASL), highly configurable, supports Maildir mailbox format, provides numerous anti-spam measures (eg. blacklisting, greylisting, DNS-based address validation) and offers extensive logging, auditing and transcript options. The built-in IMAP and POP3 servers also support SSL, STLS and SASL-based authentication, and it also has an SSL-capable POP3 downloader, which can be scheduled to run at recurring intervals. Supports web-enabled monitoring and managing.