I just recently set up Google Apps (Standard) on my domain, and I have a catch-all e-mail address on it that I pull e-mail from locally, so I can easily receive e-mail to anything@example.com. Now I want it to work in reverse -- I want to be able to send from any arbitrary address on my domain, by just including a From: foo@example.com header with my message. Unfortunately Gmail will rewrite the header to use whichever e-mail address I authenticated as. Since foo@example.com doesn't actually exist (the incoming e-mails to it are caught by the catch-all, so there's no need to make an actual foo account), I can't authenticate as it; I have to authenticate as my catch-all address, and then the e-mail shows up as sent from that address regardless of the From header. Gmail does support adding additional valid From addresses (in Settings -> Accounts), but I don't want to do that every time I have a new whatever@example.com I want to send from. Is there a way to tell Gmail/Google Apps I control all e-mail from example.com, as long as the from address is on that domain just leave it alone?
Send mail from a Gmail catch all address
gmail;google apps;email;google apps email;smtp
No, there is no way to do this at this time.Your only option using Gmail's interface is to add the address as a Send mail as address.