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Re: Relaying mail through remote server?

From: Bill Weiss (houdini+postfixclanspum.net)
Date: Sun Aug 23 2009 - 19:21:23 CDT


MySQL Student(mysqlstudentgmail.com)Sun, Aug 23, 2009 at 07:50:39PM -0400:
> Hi,
>
> I have a user that travels frequently. We have been using
> pop-before-smtp, and that's worked well. He now has a Verizon Air
> card, and the IP changes faster than the popb4smtp db can keep up
> with, so I had to add an entire /24 to mynetworks so he wouldn't have
> a problem connecting.
>
> He mentioned that it's now possible to use Outlook to connect to Gmail
> and have Google send the mail for him, showing his address in the
> "From" field:
>
> http://gmailblog.blogspot.com/2009/07/send-mail-from-another-address-without.html
>
> How can I duplicate this using postfix, and without the PITA that is
> popb4smtp, so he doesn't have to leave our system, and doesn't think
> we're a bunch of inept fools?

You're looking for authenticated SMTP:
http://www.postfix.org/SASL_README.html

--
Bill Weiss