• Support SMTP, POP3, IMAP4, HTTP, XMPP, LDAP, DNS and SSL/TLS
• Support WebMail and WebAdmin based on built-in web server
• Support CRAM-MD5, DIGEST-MD5, APOP, External/TLS-Certification and GSSAPI/Kerberos
• Support mail group, customizable user policy and mail audit
• Support popular email client( Outlook, Thunderbird ...)
• Support iCalendar and Mozilla Thunderbird Lightning Plugin
• Support LDAP Address Book based on built-in LDAP server.
• Support the mail with huge size attachment( Maximum size is 2G )
• Support Apache SpamAssassin and How to use Anti-spam Engine in eRisemail
• Recommend Ubuntu or CentOS as host OS Installation
• Project Wiki

This project began in 2004. It was published in SourceForge originally. In 2014, it was move to Github. Thanks to Github offering the host.