Is it goint to have support for domain alias?
Which type of domain alias do you prefer? the postfixadmin style or Google Apps style?
PostfixAdmin style: mapping all accounts in alias domain to existing domain. For example, add domain 'alias.com' as an alias domain of existing domain 'example.com', mail to 'email@example.com' will be delivered to 'firstname.lastname@example.org' automaticly.
Google Apps style: You can NOT add a alias domain directly, you have to add alias address for existing accounts manually. it's called Nickname address in Google Apps, and Shadow Address in iRedMail. for example, add 'email@example.com' as shadow address of 'firstname.lastname@example.org', mails delivered to these two accounts will be delivered to same mailbox (email@example.com).