From: Victor Duchovni (Victor.DuchovniMorganStanley.com)
Date: Thu Nov 01 2007 - 12:14:06 CDT

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On Thu, Nov 01, 2007 at 11:06:04AM -0500, Osmany Goderich wrote:

> I've just configured my postfix to request smtp authentication

How? Show all related settings.

> but now I
> find that one of my clients has a mail server(postfix with fetchmail) that
> is in charge of downloading all their mail to their server so that they can
> use mail clients(Outlook) in their small LAN. Of course this server relays
> all the outgoing mail to my server and here comes the problem. What does he
> need to do to meet my smtp authentication request? What does he has to add
> in his postfix configuration in order to do an authenticated smtp relay?

If this server has a static IP, you could add it to mynetworks, or use TLS
with client certs (issued by your private-label CA, or via fingerprints). Or

    http://www.postfix.org/SASL_README.html#client_sasl

--
        Viktor.

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