I use Gmail with Mail.app. As you know Gmail allows replying mails as someone else (by changing From header of the sent e-mail). If you don't know, you can register multiple mails to Gmail (your personal mail, work mail etc.) and you can send mail from them from one account.

Let's say you have 3 mails registered in GMail: [email protected], [email protected] and [email protected]. Your account is [email protected] in this case. When you use GMail web interface, if you receive a mail redirected from [email protected], when you press Reply, it sends your mail as [email protected] (or you can choose other accounts to mimic one of your e-mail addresses as sender).

However when I'm in Mail.app, I'm only able to send mail as [email protected], any ideas to solve this?

2 Answers 2


Under Accounts in Preferences, there's a field there called "Email Address:". You can put a comma-separated list of addresses in there, like this:

Multiple Emails

Now your "Compose" window will have a "From" popup menu that lets you choose your sending address:

Choose your from address

AFAIK, this works for pretty much any mail account type, as long as your mail provider allows you to muck around with the From: header.

  • solution suggested only works for mobile me accounts....
    – user6751
    May 25, 2011 at 21:34
  • 2
    No, I'm able to use them with my google apps account and POP3 account I have from school (which is also registered on Gmail). May 25, 2011 at 23:21

Under 'Accounts' in 'Preferences' change the 'Email Address:' to the address you want to use. I don't believe you can switch addresses at send time. You'll have to add a separate account for each email address you want to send from.


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