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 [email protected]. 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: [email protected] header with my message. Unfortunately Gmail will rewrite the header to use whichever e-mail address I authenticated as.

Since [email protected] 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 [email protected] 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"?


2 Answers 2


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.


As far as I know it's just not yet possible to "delegate whole domain" on gmail.

But you can do it using a IMAP client such as Thunderbird:

Better multiple identity and signature management. Set up multiple "identities" in Thunderbird with email address-specific signatures, which you can't do in web-based Gmail. Hit the "Manage Identities" button in your Account Preferences dialog. The various identities you choose will be available as a dropdown in the From: field in new messages, just like in web-based Gmail. You can also create and automatically attach a vCard to your outgoing messages on a per-identity basis with T-bird, and choose to compose your messages as HTML or plain text per identity, too.

About your other unintended question that I accidentally took as the actual question before:

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"?

Yes there is. Just add a domain alias!

It will behave just like you expect: it points everything from the alias to the main and makes all of them work seamlessly together.

  • I don't think this is what I'm looking for. I only have one domain, I just want to be able to send e-mail from any account on that domain regardless of the account I authenticated as. There's no second domain I need to alias Dec 20, 2010 at 15:58
  • Oh, my bad again @Michael! Clearly I didn't understand your question before. I'll edit the answer but I can't think of anyway to do that within google apps.
    – cregox
    Dec 20, 2010 at 16:38
  • "Let it be" doesn't work when you're trying to convince the mailing list server that you're really you. May 2, 2011 at 12:35
  • @Andre true. Sometimes I'm in the wrong mood to answer questions, and I don't even smoke pot!
    – cregox
    May 2, 2011 at 15:53
  • 1
    You can't do this with plain Thunderbird either: you still have to create all those identities before using them. The Virtual Identity addon solves that however. Shame Gmail doesn't...
    – RomanSt
    Jul 23, 2011 at 21:13

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