Via the Official Gmail Blog
Until now, whenever you send an email from a custom address in Gmail, it would automatically add “From:” in the headers. This reveals your Gmail address to people who you may not wish to see it.
In Outlook and Hotmail, it shows your email as coming from:
myname@gmail.com on behalf of myname@mywebsite.com
Personally, this put me off consolidating my email addresses, because I didn’t want to give my Gmail address out to people, I’d rather they contact me via myname@mywebsite.com.
Well now, finally, Gmail has allowed us to send mail from a custom address without the “on behalf of”!
The way it works is instead of sending the mail out via the Gmail servers, it connects to your other SMTP server and sends it through there. This avoids any problems with spam filters thinking you’ve falsified your headers.
The way it worked before:
The way it works now:
For more info on how to enable this option, visit the Official Gmail Blog:
http://gmailblog.blogspot.com/2009/07/send-mail-from-another-address-without.html
