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@xxxxxxxxxxxxxxxxxxxxxxxxxx, relay=localhost.localdomain
[127.0.0.1], reject=550 5.7.1 <root@xxxxxxxxxxxxxxxxxxxxxxxxxx>... not
authenticated
Nov 17 06:26:46 mail sendmail[23544]: jAHBQkxJ023544:
from=<root@xxxxxxxxxxxxxxxxxxxxxxxxxx>, size=2549, class=0, nrcpts=1,
msgid=<200511171102.jAHB2IWk023430@xxxxxxxxxxxxxxxxxxxxxxxxxx>,
proto=ESMTP, daemon=MTA-v4, relay=localhost.localdomain [127.0.0.1]
Nov 17 06:26:46 mail sendmail[23545]: jAHBQkxJ023544: alias
<root@xxxxxxxxxxxxxxxxxxxxxxxxxx> => 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
