Hi,
I seem to have an issue with my mailhost server randomly rejecting emails from
my mailman server whenever they are directed externally.
My current setup is I have a mailman server running mailman and sendmail which
sends all emails to my mailhost server also running sendmail. Mailhost passes
the emails through mailscanner etc. and then relays them either externally or
internally based on the target email. Internal relaying works just fine but
external relaying seems to sporadically accept some addresses for delivery and
reject others. the choice of addresses it chooses to accept or reject is
different for every attempt I am so for example for my first attempt it will
forward the email to the first and 3rd external email addresses and reject to
forward to the rest and on the 2nd attempt it rejects the the 2nd and 3rd and
4th but sends the emails to the 1st and 5th addresses just fine and so on. My
mailman server's logs do not show any errors but my mailhost does.
this is the extract in question from my mailhost server mail log file:
Jul 24 09:08:52 mailhost sm-mta[3296]: s6O88pSr003296:
from=<[email protected]>, size=2260, class=0, nrcpts=1,
msgid=<[email protected]>, proto=ESMTP,
daemon=MTA-v4, relay=mail-we0-f174.external-domain.com [74.125.82.174]Jul 24
09:08:52 mailhost sm-mta[3296]: s6O88pSr003296:
to=<[email protected]>, delay=00:00:00, mailer=esmtp,
pri=32260, stat=queuedJul 24 09:08:53 mailhost MailScanner[2909]: New Batch:
Scanning 1 messages, 2837 bytesJul 24 09:08:53 mailhost MailScanner[2909]:
Virus and Content Scanning: StartingJul 24 09:09:07 mailhost MailScanner[2909]:
MCP Checks: StartingJul 24 09:09:07 mailhost MailScanner[2909]: Uninfected:
Delivered 1 messagesJul 24 09:09:07 mailhost MailScanner[2909]: Deleted 1
messages from processing-databaseJul 24 09:09:08 mailhost sendmail[3307]:
s6O88pSr003296: to=<[email protected]>, delay=00:00:16,
xdelay=00:00:01, mailer=esmtp, pri=122260, relay=mailman-s
erver.dmz.on.internal-domain.com. [172.16.0.143], dsn=2.0.0, stat=Sent
(s6O893Rm003831 Message accepted for delivery)Jul 24 09:09:16 mailhost
sm-mta[3309]: s6O89FAL003309: ruleset=check_rcpt,
arg1=<[email protected]>,
relay=mailhost.server.in-dmz.on.internal-domain.com [mailhost ip address] (may
be forged), reject=550 5.7.1 <[email protected]>... Relaying
denied. IP name possibly forged [mailhost ip address]Jul 24 09:09:16 mailhost
sm-mta[3309]: s6O89FAL003309:
from=<[email protected]>, size=4645, class=0,
nrcpts=0, proto=ESMTP, daemon=MTA-v4,
relay=mailhost.server.in-dmz.on.internal-domain.com [mailhost ip address] (may
be forged)Jul 24 09:09:16 mailhost sm-mta[3309]: s6O89FAN003309:
<[email protected]>... User unknownJul 24
09:09:16 mailhost sm-mta[3309]: s6O89FAN003309: from=<>, size=0, class=0,
nrcpts=0, proto=ESMTP, daemon=MTA-v4,
relay=mailhost.server.in-dmz.on.internal-domain.com [
mailhost ip address] (may be forged)Jul 24 09:09:16 mailhost sm-mta[3309]:
s6O89FAP003309: from=<>, size=2657, class=0, nrcpts=1,
msgid=<201407240809.s6o89czp003...@mailman-server.dmz.on.internal-domain.com>,
proto=ESMTP, daemon=MTA-v4, relay=mailhost.server.in-dmz.on.internal-domain.com
[mailhost ip address] (may be forged)Jul 24 09:09:16 mailhost sm-mta[3309]:
s6O89FAP003309: to=<[email protected]>, delay=00:00:00,
mailer=esmtp, pri=32657, stat=queuedJul 24 09:09:16 mailhost sm-mta[3310]:
s6O89FRV003310: from=<[email protected]>,
size=4640, class=-30, nrcpts=2,
msgid=<[email protected]>, proto=ESMTP,
daemon=MTA-v4, relay=mailhost.serscis.eu [mailhost ip address]Jul 24 09:09:16
mailhost sm-mta[3310]: s6O89FRV003310: to=<[email protected]>,
delay=00:00:00, mailer=esmtp, pri=118640, stat=queuedJul 24 09:09:16 mailhost
sm-mta[3310]: s6O89FRV003310: to=<[email protected]
>, delay=00:00:00, mailer=esmtp, pri=118640, stat=queuedJul 24 09:09:16
>mailhost sm-mta[3311]: s6O89Fll003311: ruleset=check_rcpt,
>arg1=<[email protected]>,
>relay=mailhost.server.in-dmz.on.internal-domain.com [mailhost ip address]
>(may be forged), reject=550 5.7.1 <[email protected]>...
>Relaying denied. IP name possibly forged [mailhost ip address]Jul 24 09:09:16
>mailhost sm-mta[3311]: s6O89Fll003311:
>from=<[email protected]>, size=4640, class=-30,
>nrcpts=1, msgid=<[email protected]>,
>proto=ESMTP, daemon=MTA-v4,
>relay=mailhost.server.in-dmz.on.internal-domain.com [mailhost ip address]
>(may be forged)Jul 24 09:09:16 mailhost sm-mta[3311]: s6O89Fll003311:
>to=<[email protected]>, delay=00:00:00, mailer=esmtp,
>pri=88640, stat=queuedJul 24 09:09:17 mailhost sm-mta[3311]: s6O89Fln003311:
><[email protected]>... User unknownJul 24
>09:09:17 m
ailhost sm-mta[3311]: s6O89Fln003311: from=<>, size=0, class=0, nrcpts=0,
proto=ESMTP, daemon=MTA-v4, relay=mailhost.server.in-dmz.on.internal-domain.com
[mailhost ip address] (may be forged)Jul 24 09:09:17 mailhost sm-mta[3311]:
s6O89Flp003311: from=<>, size=2657, class=0, nrcpts=1,
msgid=<201407240809.s6o89czp003...@mailman-server.dmz.on.internal-domain.com>,
proto=ESMTP, daemon=MTA-v4, relay=mailhost.server.in-dmz.on.internal-domain.com
[mailhost ip address] (may be forged)Jul 24 09:09:17 mailhost sm-mta[3311]:
s6O89Flp003311: to=<[email protected]>, delay=00:00:00,
mailer=esmtp, pri=32657, stat=queued
Any help would be appreciated.
ThanksAbZ
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