Re: MSA SPF Policy Checks

spf2@xxxxxxxxxxxxx wrote:

> It ocurred to me that it might be useful for an MSA to check and see if a 
> message that is being submitted to it for transmission would pass an SPF 
> check using the MSA's local IP address.  I'm trying this in Postfix 2.1.

I think you're much better off checking out 'smtpd_sender_login_maps'
and 'reject_sender_login_mismatch'. When properly setup, this will also
prevent cross-user forgeries and in general prevent relaying of messages
with non-approved sender addresses.

Regards, Arjen

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