I am running a postfix/DBMail system. For those who are not familiar with it, DBMail is a storage backend that stores email in a MySQL database. The company i work for has over 100 domain names. any email to user@<insert any domain name here> needs to go to one mailbox.

The problem? To do this, i would have to have one entry for every user for every domain name in the aliases table of DBMail. This is not reasonable. The old server used a sendmail configuration to rewrite the RCPT TO:<> portion of the email to match one particular domain before passing the email to DBMail via LMTP. I do not like sendmail and would like to know if this is possible in postfix.