Rewrite outgoing email address

[dnutan (Marc)]

Maybe not exactly what you ask but close enough:

Email Domain Aliases don't appear to work

Not sure if the solution I use is relevant here. I have the situation where there are multiple mail domains/sub-domains to accept and all I wanted to achieve was postfix to auto rewrite the domain portion of the address to deliver to the prime domain mailbox. eg: {username}@<second.domain> is accepted, rewritten and delivered to {username}@<primary.domain> without needing to add an email alias for each user. To do this, I have added: canonical_maps = regexp:/etc/postfix/rewrite to /etc/post…