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I use Gmail with 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:, a@a.a and b@b.b. Your account is in this case. When you use GMail web interface, if you receive a mail redirected from a@a.a, when you press Reply, it sends your mail as a@a.a (or you can choose other accounts to mimic one of your e-mail addresses as sender).

However when I'm in, I'm only able to send mail as, any ideas to solve this?

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up vote 11 down vote accepted

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.

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Worked like a charm! Thanks! – alp May 24 '11 at 7:41
solution suggested only works for mobile me accounts.... – user6751 May 25 '11 at 21:34
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). – alp May 25 '11 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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That's so sad :( – alp May 23 '11 at 23:32

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