Re: Authenticated SMTP and RBLs

On Wednesday September 12 2007 20:36:50 hamann.w@t-online.de wrote:
> while setting proper trust relatios can solve the problem for mails
> internal to the system, without that auth'd bit in the received header
> everybody outside the system will still see the message as coming from
> a dialup and passing through a potential open relay

If you have a dedicated MTA for mail submission, the msa_networks allows for describing such topology, so the auth bit in received header field is not needed. The idea is that MSA itself guarantees that it is only willing to accept mail from internal hosts or from authenticated users (but does not act as an MX), so whatever comes through MSA is guaranteed to be from our users.

  Mark Received on Wed Sep 12 17:50:58 2007