Hello -

We are running LISTSERV on a Windows NT host (ddoc.adlt.com) and sending mail
via a Lotus Domino SMTP MTA running on another Windows NT host
(thorium.adlt.com).  Many of our outbound messages fail, seemingly due to a DNS
failure on the receiving end related to the address
[log in to unmask]  Two typical traces appear below.  My questions
are: 1) where does "[log in to unmask]" come from (it's not in the
list header anywhere); and 2) any suggestions to fix this problem?

Thanks in advance!

Lowell S. Davis

09/26/2000 07:20:53 PM  SMTPMTA: oseshlr0 <TRACE> DNS resolves CMC.NET to 1
address(es)
09/26/2000 07:20:53 PM  SMTPMTA: oseshlr0 <TRACE> valid address/name [CMC.NET]
09/26/2000 07:20:53 PM  SMTPMTA: oseshlr0 <TRACE> Attempting open to
[206.102.31.250]
09/26/2000 07:20:53 PM  SMTPMTA: oseshlr0 <TRACE> <- 220 bifur.cmc.net ESMTP
Postfix
09/26/2000 07:20:53 PM  SMTPMTA: oseshlr0 <TRACE> Input Command String -> HELO
thorium.adlt.com
09/26/2000 07:20:53 PM  SMTPMTA: oseshlr0 <TRACE> <- 250 bifur.cmc.net
09/26/2000 07:20:53 PM  SMTPMTA: oseshlr0 <TRACE> Connected to hostname CMC.NET
[206.102.31.250]
09/26/2000 07:20:53 PM  SMTPMTA: oseshlr0 <TRACE> Host Name [CMC.NET] opened
successfully
09/26/2000 07:20:53 PM  SMTPMTA: oseshlr0 <TRACE> Input string Originator:
[log in to unmask]
09/26/2000 07:20:53 PM  SMTPMTA: oseshlr0 <TRACE> Input Command String -> MAIL
FROM:<[log in to unmask]>
09/26/2000 07:20:53 PM  SMTPMTA: oseshlr0 <TRACE> <- 250 Ok
09/26/2000 07:20:53 PM  SMTPMTA: oseshlr0 <TRACE> Input string Recipient :
[log in to unmask]
09/26/2000 07:20:53 PM  SMTPMTA: oseshlr0 <TRACE> RCPT TO:<[log in to unmask]>
09/26/2000 07:20:53 PM  SMTPMTA: oseshlr0 <TRACE> Input Command String -> RCPT
TO:<[log in to unmask]>
09/26/2000 07:20:59 PM  SMTPMTA: oseshlr0 <TRACE> <- 550
<[log in to unmask]>: Sender address rejected: Domain not found
09/26/2000 07:20:59 PM  SMTPMTA: oseshlr0<TRACE> 'User Error: MTA 'CMC.NET'
gives error message <[log in to unmask]>: Sender address rejected:
Domain not found' line 332 file 'mta\pp_pi.lib\s\outbound.c'

09/26/2000 07:20:50 PM  SMTPMTA: oseshlr1 <TRACE> DNS resolve host UP.NET
09/26/2000 07:20:50 PM  SMTPMTA: oseshlr1 <TRACE> sending ns query (24 bytes)
09/26/2000 07:20:51 PM  SMTPMTA: oseshlr1 <TRACE> 2 answers to query
09/26/2000 07:20:51 PM  SMTPMTA: oseshlr1 <TRACE> using 2 mx hosts
09/26/2000 07:20:51 PM  SMTPMTA: oseshlr1 <TRACE> 1 addresses saved for
btc1.UP.NET
09/26/2000 07:20:51 PM  SMTPMTA: oseshlr1 <TRACE> 1 addresses saved for
btc2.UP.NET
09/26/2000 07:20:51 PM  SMTPMTA: oseshlr1 <TRACE> DNS resolves UP.NET to 2
address(es)
09/26/2000 07:20:51 PM  SMTPMTA: oseshlr1 <TRACE> Attempting open to
[205.242.56.10]
09/26/2000 07:20:56 PM  SMTPMTA: oseshlr1 <TRACE> <- 220 btc1.up.net ESMTP
Sendmail 8.11.0/8.11.0; Tue, 26 Sep 2000 19:20:57 -0400 (EDT)
009/26/2000 07:20:56 PM  SMTPMTA: oseshlr1 <TRACE> Input Command String -> HELO
thorium.adlt.com
09/26/2000 07:20:56 PM  SMTPMTA: oseshlr1 <TRACE> <- 250 btc1.up.net Hello
[207.206.16.231], pleased to meet you
09/26/2000 07:20:56 PM  SMTPMTA: oseshlr1 <TRACE> Connected to hostname UP.NET
[205.242.56.10]
09/26/2000 07:20:56 PM  SMTPMTA: oseshlr1 <TRACE> Host Name [UP.NET] opened
successfully
09/26/2000 07:20:57 PM  SMTPMTA: oseshlr1 <TRACE> Input string Originator:
[log in to unmask]
09/26/2000 07:20:57 PM  SMTPMTA: oseshlr1 <TRACE> Input Command String -> MAIL
FROM:<[log in to unmask]>
09/26/2000 07:21:00 PM  SMTPMTA: oseshlr1 <TRACE> <- 501 5.1.8
<[log in to unmask]>... Domain of sender address
[log in to unmask] does not exist
09/26/2000 07:21:00 PM  SMTPMTA: oseshlr1 <TRACE> Input Command String -> RSET
09/26/2000 07:21:00 PM  SMTPMTA: oseshlr1 <TRACE> <- 250 2.0.0 Reset state
09/26/2000 07:21:00 PM  SMTPMTA: oseshlr1<TRACE> 'Bad Parameter' line 230 file
'mta\pp_pi.lib\s\outbound.c'
009/26/2000 07:21:00 PM  SMTPMTA: oseshlr1 <TRACE> The peer SMTP host reports
that it received bad SMTP command syntax.
09/26/2000 07:21:00 PM  SMTPMTA: oseshlr1 <TRACE> smtp_send_originator()
temporary error, rcode=13233, Error Message: 2.0.0 Reset state, Mark the message
list for a retry
09/26/2000 07:21:00 PM  SMTPMTA: oseshlr1 <TRACE> OSHSendMail() reports a
MSG_FATAL error.
09/26/2000 07:21:00 PM  SMTPMTA: oseshlr1 <TRACE> Input Command String -> RSET
09/26/2000 07:21:00 PM  SMTPMTA: oseshlr1 <TRACE> <- 250 2.0.0 Reset state
09/26/2000 07:21:00 PM  SMTPMTA: oseshlr1 <TRACE> Input Command String -> QUIT
09/26/2000 07:21:01 PM  SMTPMTA: oseshlr1 <TRACE> <- 221 2.0.0 btc1.up.net
closing connection
09/26/2000 07:21:01 PM  SMTPMTA: oseshlr1 <TRACE> Closing connection to [UP.NET]