At 13:14 3/21/2006 Tuesday, Michael Loftis wrote:
>--On March 21, 2006 12:42:41 PM -0500 Michael DeGregory <[log in to unmask]> wrote:
>
>>Hi Pete/Ben,
>>
>>Thank you for your response. We have enabled Site-Specific logging for a
>>few domains but more specific we have done it for our domain (aip.org).
>>Below is an example of a probe failure for one of our email addresses. In
>>this case [log in to unmask] is a valid email address here so I am still
>>unsure as to why the probe fails. This is affecting many of our other
>>lists and we are receiving many complaints from subscribers who have been
>>auto-deleted.
>
>Sounds like you've got something else going on.... you sure the gateway at aip.org isn't bouncing it later for some reason?
>
>What about records before/after the actual probe failure in the log?


IF I read the two logs timestamps correctly (assming all clocks are in-sync), the bounce occurred AFTER it was accepted i.e., the mail was delivered, and then the receiving MTA turned around and sent it to the RFC821 MAIL FROM field.

14:52:32 beast.AIP.ORG( 75) >>> 250 beast.int.aip.org: Message accepted for delivery
14:52:35 beast.AIP.ORG( 75) <<< QUIT

and

SQL> SELECT EMAIL,NAME,FYI FROM LISTSERV WHERE UEMAIL LIKE ? FOR UPDATE OF
EMAIL,NAME,FYI,UEMAIL
17 Mar 2006 14:52:34 -> Probe failure for [log in to unmask] on FYI


So like Mike said, looks like more info is required e.g., the SMTP log of the recipient MX host[s]

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\temp>nslookup

> set type=mx
> AIP.ORG

Non-authoritative answer:
AIP.ORG MX preference = 10, mail exchanger = beast.AIP.ORG
AIP.ORG MX preference = 10, mail exchanger = wolverine.AIP.ORG
AIP.ORG MX preference = 20, mail exchanger = mailgate-2a.AIP.ORG

AIP.ORG nameserver = ns-1.AIP.ORG
AIP.ORG nameserver = ns-2.AIP.ORG
AIP.ORG nameserver = ns-3.AIP.ORG
beast.AIP.ORG   internet address = 192.58.150.54
wolverine.AIP.ORG       internet address = 192.58.150.55
mailgate-2a.AIP.ORG     internet address = 38.144.200.26
ns-1.AIP.ORG    internet address = 192.58.150.21
ns-2.AIP.ORG    internet address = 38.144.200.21
ns-3.AIP.ORG    internet address = 67.72.105.21
>

[I'm sure you will observe a slight mismatch (if it matters) between the NSLOOKUP MX hostnames beast.aip.org and the reported hostname that accepted delivery in your logs -- I'm not a sufficent expert in such things to know if it makes a dif.]

/Pete