First, I was wrong about when unknown shows. Unknown seems to show if a
reverse isn't found, not if it doesn't match.
For regular inbound emails, if helo doesn't match the reverse, the reverse
is used right after the received: line and the helo that was given appears
after the helo= line. Sorry about that mistake.
However, I've done a couple of tests hitting our relay port from some
outside hosts that I opened up temporarily. I'm talking from several
different ISPs, all of which have an IP that reverses fine using the dns
servers used on the ASSP server. Every test message shows
Received from: *unknown (x.x.x.x helo=givenhelo)*
where x.x.x.x is the connecting IP address and givenhelo is the helo that
was used which matches the reverse dns of that IP.
I can't figure out why it would show as unknown. It's as if ASSP isn't
doing or finding the hostname based on the reverse of the ip. And that's
only happening through the relay port.
On Fri, Mar 18, 2016 at 1:04 PM, K Post <nntp.p...@gmail.com> wrote:
> ?
>
>
> On Wed, Mar 16, 2016 at 12:21 PM, K Post <nntp.p...@gmail.com> wrote:
>
>> I don't think this is an ASSP problem, but wanted to make sure as I'm at
>> the end of my rope on this.
>>
>> Regular inbound messages are fine. As long as the helo matches reverse
>> DNS, then the received line is like
>>
>> Received: from whatever.outside.com (1.2.3.4 helo=whatever.outside.com
>> ).....
>>
>> If the helo doen't match, it gives
>>
>> Received: from unknown (1.2.3.4 helo=whatever.outside.com).....
>> (or maybe that's only if there is no reverse dns for the ip?)
>>
>> Fine
>>
>> What I'm finding though is that when i send mail from our exchange
>> servers, which use ASSP as a smarthost, it always shows
>> Received: from unknown (172.15.15.5 helo=exchange.int.ourcharity.org)....
>> despite 172.15.15.5 reversing internally to exchange.int.ourcharity.org
>>
>> Is there any chance that there's a bug in ASSP where it's not trying to
>> reverse the IP for relays?? Not trying to be accusatory, I just can't
>> figure it out. If I do a nslookup on the assp machine, all is fine for
>> that ip.
>>
>>
>>
>>
>
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