From: mouss (mlist.onlyfree.fr)
Date: Fri Dec 14 2007 - 11:58:02 CST

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Listaccount wrote:
> Hello
>
> we have a problem with a branch office which should relay through our
> company mailserver. We used the Microsoft SMTP Service that comes with
> Windows but this stupid thing creates multiple e-mail from multi
> recipient e-mail and send it across the slow WAN link to the relay
> server. As the mail send from the branch are big sized and most of the
> time multi recipient this hurt the performance a lot. No we have tried
> to use some other Windows Mailserver (Mercury/Tnsoft) but this two use
> a lot of CPU and/or have big delay (minutes) for processing multi
> megabyte e-mail.
> It would be nice if someone can suggest a simple windows MTA relay
> software not suffering from this drawbacks. It should only be for
> internal use and only for relaying to the outgoing Postfix, something
> like nullmailer for windows.

if the site has a firewall (I hope:), then configure the firewall to
forward all smtp traffic to your (remote) postfix box. or configure
users mailers to use your postfix server (port 587, the submission service).

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