Seeing authentication failures regularly in maillog

[Alexander Dalloz]

Am Do, den 17.11.2005 schrieb Philip Prindeville um 23:42:

> I'm seeing transactions like the following being logged in maillog:
> 
> Nov 17 06:26:46 mail sendmail[23544]: NOQUEUE: connect from 
> localhost.localdomain [127.0.0.1]
> Nov 17 06:26:46 mail sendmail[23544]: AUTH: available mech=DIGEST-MD5 
> ANONYMOUS CRAM-MD5, allowed mech=EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 
> LOGIN PLAIN
> Nov 17 06:26:46 mail sendmail[23544]: jAHBQkxI023544: Milter: no active 
> filter
> Nov 17 06:26:46 mail sendmail[23544]: STARTTLS=server, 
> relay=localhost.localdomain [127.0.0.1], version=TLSv1/SSLv3, verify=NO, 
> cipher=DHE-RSA-AES256-SHA, bits=256/256
> Nov 17 06:26:46 mail sendmail[23544]: STARTTLS=server, cert-subject=, 
> cert-issuer=, verifymsg=ok
> Nov 17 06:26:46 mail sendmail[23544]: AUTH: available mech=LOGIN 
> DIGEST-MD5 PLAIN ANONYMOUS CRAM-MD5, allowed mech=EXTERNAL GSSAPI 
> DIGEST-MD5 CRAM-MD5 LOGIN PLAIN
> Nov 17 06:26:46 mail sendmail[23544]: ruleset=trust_auth, 
> arg1=root at mail.redfish-solutions.com, relay=localhost.localdomain 
> [127.0.0.1], reject=550 5.7.1 <root at mail.redfish-solutions.com>... not 
> authenticated
> Nov 17 06:26:46 mail sendmail[23544]: jAHBQkxJ023544: 
> from=<root at mail.redfish-solutions.com>, size=2549, class=0, nrcpts=1, 
> msgid=<200511171102.jAHB2IWk023430 at mail.redfish-solutions.com>, 
> proto=ESMTP, daemon=MTA-v4, relay=localhost.localdomain [127.0.0.1]
> Nov 17 06:26:46 mail sendmail[23545]: jAHBQkxJ023544: alias 
> <root at mail.redfish-solutions.com> => philipp
> Nov 17 06:26:46 mail sendmail[23430]: jAHB2IWk023430: to=root, 
> ctladdr=root (0/0), delay=00:24:28, xdelay=00:00:00, mailer=relay, 
> pri=32250, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent 
> (jAHBQkxJ023544 Message accepted for delivery)
> Nov 17 06:26:46 mail sendmail[23545]: jAHBQkxJ023544: to=philipp, 
> delay=00:00:00, xdelay=00:00:00, mailer=cyrusv2, pri=32847, 
> relay=localhost, dsn=2.0.0, stat=Sent
> Nov 17 06:26:46 mail sendmail[23545]: jAHBQkxJ023544: done; 
> delay=00:00:00, ntries=1
> 
> 
> Any idea why that is?  Does it represent a failure?  Or is the message being
> redelivered without authentication?
> 
> And why is authentication required on the loopback address?
> 
> -Philip

Make sure your /etc/mail/access contains at least

# by default we allow relaying from localhost...
localhost.localdomain           RELAY
localhost                       RELAY
127.0.0.1                       RELAY

Alexander


-- 
Alexander Dalloz | Enger, Germany | GPG http://pgp.mit.edu 0xB366A773
legal statement: http://www.uni-x.org/legal.html
Fedora Core 2 GNU/Linux on Athlon with kernel 2.6.11-1.35_FC2smp 
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