On Wed, 2003-11-12 at 16:18, Michael Holt wrote: ... it's not about your message headers ... > Now, I've changed the ip's and machine name's but you get the idea. > This is sent to a test account just to see what the headers end up > like. The problem is that when I email my boss (I'm a contractor and my > point of contact works for this specific company) I get refused and my > email is bounced with this: > > connect to > qxssmtp2.qualxserv.com[65.246.197.34]: server refused mail service > > Received: from myclientmachine (unknown [192.168.0.4]) > by myemailserver (Postfix) with ESMTP id 5E918200099 > > This is just a snippet but the rest is just email information. I'm not > able to telnet to this person's email server at all, from anywhere. > > I'm wondering if they have something set on their server to drop any > email that doesn't show an fqdn in the received string. Maybe to keep > from getting email from a server that's been taken over as a relay? If > this is the case, how would I set postfix so that emails originating > from other boxes on my lan would appear to be the server sending them? > So that the above headers taken from both webmail and client machines > would look identical? >
Their server won't accept connections from anything that I have access too, and I have access to some pretty high traffic (and legit :-) mail servers -- I don't see how they can get mail from any one. They don't even give the chance to AUTH. Since that server is the only MX record listed in their zone, they're self-blackholed. My guess is they're whitelisting, which IMHO is The Beginning Of The End. -- Jack Coates Monkeynoodle: A Scientific Venture...
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