I have experience this problem, as well (see example log entry below). In
this case the "A" record for paml.com points to their web server and not the
same IP address and "A" record as the "MX record, which points to
mail.paml.com. And to make things worse, the web servers appears to be
running an SMTP service, as well, but which refuses to relay for the domain
paml.com (I know, this is really a problem with the way they have things
setup on their end, but the reality is that we have to deal with these kinds
of problems everyday). If there is a way to disable the "A" record delivery
attempts, please let us know how to do it.
Thanks,
Bill Landry
Pointshare
===================
DNS Record (note the "MX" record points to mail.paml.com, which has an "A"
record pointing to 207.225.40.3. When that failed it tried the "A" record
for the domain paml.com, which is pointed to 216.25.91.229):
Query:All records (ALL):paml.com
Authoritative Answer
paml.com A 216.25.91.229
paml.com NS dns1.interland.net
paml.com NS dns2.interland.net
paml.com NS dns3.interland.net
paml.com SOA dns1.interland.net root.dns1.interland.net
paml.com MX 5 mail.paml.com
paml.com NS dns1.interland.net
paml.com NS dns2.interland.net
paml.com NS dns3.interland.net
dns1.interland.net A 208.233.88.10
dns2.interland.net A 208.233.88.15
dns3.interland.net A 208.233.88.20
mail.paml.com A 207.225.40.3
Complete: paml.com
==========================
IMail Log (note it tried the "MX" first and failed to connect then tried the
"A" record and connected but got denied stating that "Unable to relay for
[EMAIL PROTECTED]" and closed the connection):
12:01 08:45 SMTPD(07760096) [206.114.136.176] connect 207.108.53.70 port
14040
12:01 08:45 SMTPD(07760096) [207.108.53.70] HELO Norm
12:01 08:45 SMTPD(07760096) [207.108.53.70] MAIL FROM:
<[EMAIL PROTECTED]>
12:01 08:45 SMTPD(07760096) [207.108.53.70] RCPT TO: <[EMAIL PROTECTED]>
12:01 08:45 SMTPD(07760096) [207.108.53.70] M:\IMAIL\spool\D50c1096.SMD 630
12:01 08:45 SMTP-(0000018B) processing M:\IMAIL\spool\Q50c1096.SMD
12:01 08:46 SMTP-(0000018B) Trying paml.com (0)
12:01 08:46 SMTP-(0000018B) MX connect fail "207.225.40.3"
12:01 08:46 SMTP-(0000018B) Connect paml.com [216.25.91.229:25] (2)
12:01 08:46 SMTP-(0000018B) 220-proserver86 Microsoft SMTP MAIL ready at
Wed, 1 Dec 1999 11:46:12 -0500 Version: 5.5.1877.197.19
12:01 08:46 SMTP-(0000018B) 220 ESMTP spoken here
12:01 08:46 SMTP-(0000018B) >EHLO mail.bfispokane.com
12:01 08:46 SMTP-(0000018B) 250-proserver86 Hello [206.114.136.176]
12:01 08:46 SMTP-(0000018B) 250-AUTH=LOGIN
12:01 08:46 SMTP-(0000018B) 250-AUTH NTLM LOGIN
12:01 08:46 SMTP-(0000018B) 250-AUTH=NTLM LOGIN
12:01 08:46 SMTP-(0000018B) 250-SIZE 2097152
12:01 08:46 SMTP-(0000018B) 250-ETRN
12:01 08:46 SMTP-(0000018B) 250-PIPELINING
12:01 08:46 SMTP-(0000018B) 250-8bitmime
12:01 08:46 SMTP-(0000018B) 250-TURN
12:01 08:46 SMTP-(0000018B) 250-ATRN
12:01 08:46 SMTP-(0000018B) 250-STARTTLS
12:01 08:46 SMTP-(0000018B) 250 TLS
12:01 08:46 SMTP-(0000018B) >MAIL FROM:<[EMAIL PROTECTED]>
12:01 08:46 SMTP-(0000018B) 250 [EMAIL PROTECTED] OK
12:01 08:46 SMTP-(0000018B) >RCPT To:<[EMAIL PROTECTED]>
12:01 08:46 SMTP-(0000018B) 550 Unable to relay for [EMAIL PROTECTED]
12:01 08:46 SMTP-(0000018B) >QUIT
12:01 08:46 SMTP-(0000018B) 221 proserver86 Service closing transmission
channel
12:01 08:46 SMTP-(0000018B) Creating message from Postmaster
12:01 08:46 SMTP-(0000018B) finished M:\IMAIL\spool\Q50c1096.SMD status=2
========================
-----Original Message-----
From: Hugo A. Uriona [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, December 01, 1999 6:52 AM
To: [EMAIL PROTECTED]
Subject: [IMail Forum] delivery to A records
When the connection to the MX record for the destination host fails, IMail
attempts to deliver
the message to the A record. The problem is that usually the A record
points to the web server of that domain which does not relay messages.
Is there a way to keep the message in the queue and have IMail keep trying
the MX record host later?
Hugo A. Uriona
Unete - Bolivia
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