I believe many of you have forwarded your email from other email account to your Gmail account for convenience purpose. But do you know that you can actually reply the forwarded email with the same email address the message was sent to?
If you’d like your outgoing Gmail messages to display your another email address in the “From:” field (instead of your Gmail address), just follow these easy steps:
Step 1: Log in to your Gmail account.
Step 2: Click Settings on the top of the page.

Step 3: Select Accounts tab. Then click Add another email address in the Send mail as: section.

Step 4: Enter your Name and the Email address you’d like to use in the “Form” field. You can specify a different email address for “reply-to” address if you’d like email replies to be delivered to other email account, such as Gmail.

Step 5: Click Next Step » and then click Send Verification to complete the process. Gmail will send a verification message to your other email address to confirm that you’d like to add it to your Gmail account.

You’ll need to click the link in the verification email or key in the verify code in order to verify you’re the owner of the email address.

Step 6: Once you have verified that you are the owner of the email address, you can customize your email address in the From: field whenever you want to compose an email.

[Contributed by Kay Tan]
Never knew this could be done, quite an exclusive feature not readily offered, right?
Yes. It makes us check all mail in an account and send all mail from an account too.
I hope it helps you all.
Good find. Adding email now :)
Knew about it long time ago. I like it because i had to email from various email domain and all can be done by Gmail. Still when you check your email header. All the details is there.
Yeah, but I think the recipient will receive the email like this:-
From (abc@gmail.com) on behalf of abc@tm.net.my [the guest email] instead of From : abc@tm.net.my
No, it won’t show that.
If they sent it to abc@tm.net.my, and you select abc@tm.net.my in the “from” field, it won’t appear.
The on behalf problem will only appear if the e-mail is sent to abc@tm.net.my and the “from” field has abc@gmail.com in it.
I already am using it quite some time too. Both office and personal mail is coming and going vis GMail. I even reached 100% and had to delete oldest mails.
One thing I wish Google folks could do is to also have options to allow different signatures for different e-mails. I prefer to have different signatures for my personal and office mail you see…
For years, Google Mail has been offering for FREE features that yahoo mail is STILL charging for. (e-mail personalization)
I’m just not a big fan of the way they put your G-Mail address in the e-mail headers. In my opinion, they could be a lot more discreet.
DAMN useful. Just what I was looking for and found it on #1 search. I wish i could use different signatures on different outgoing email.
This is good but when you view the source of the email, the main Gmail account is revealed ….
Now that you have your multiple addresses set up, you may be interested in this add-on for Firefox that automatically inserts up to four rich HTML signatures into your messages for each address you have set up.
http://blankcanvasweb.com/pages/detail/id_9/n_gmail_signatures/