Hello everyone,
My current postfix configuration allows an authenticated (SASL) user to send emails with any From: address. 1) Is there a way to limit From: addresses to known/configured (virtual_mailbox_domains) domains only? 2) Is there a way to limit From: to be exactly like the authenticated FROM address? I'm interested in postfix-only solutions, but I'll use a policy service if postfix can't do the above things. Thank you.
