dsn=5.0.0, stat=Service unavailable

Sep  2 17:38:12 mail sendmail[5522]: r82C8CpE005522: from=root, size=148, class=0, nrcpts=1, msgid=<201309021208.r82C8CpE005522@mail.server.local>, relay=root@localhost
Sep  2 17:38:13 mail sm-mta[5523]: r82C8CtA005523: from=<root@mail.server.local>, size=373, class=0, nrcpts=1, msgid=<201309021208.r82C8CpE005522@mail.server.local>, proto=ESMTP, daemon=MTA-v4, relay=localhost [127.0.0.1]
Sep  2 17:38:13 mail sendmail[5522]: r82C8CpE005522: to=suhaskekuda@gmail.com, ctladdr=root (0/0), delay=00:00:01, xdelay=00:00:01, mailer=relay, pri=30148, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (r82C8CtA005523 Message accepted for delivery)
Sep  2 17:38:16 mail sm-mta[5525]: STARTTLS=client, relay=gmail-smtp-in.l.google.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DES-CBC3-SHA, bits=168/168
Sep  2 17:38:19 mail sm-mta[5525]: r82C8CtA005523: to=<suhaskekuda@gmail.com>, ctladdr=<root@mail.server.local> (0/0), delay=00:00:06, xdelay=00:00:06, mailer=esmtp, pri=120373, relay=gmail-smtp-in.l.google.com. [173.194.79.27], dsn=5.0.0, stat=Service unavailable
Sep  2 17:38:19 mail sm-mta[5525]: r82C8CtA005523: r82C8JtA005525: DSN: Service unavailable
Sep  2 17:38:19 mail sm-mta[5525]: r82C8JtA005525: to=<root@mail.server.local>, delay=00:00:00, xdelay=00:00:00, mailer=local, pri=30000, dsn=2.0.0, stat=Sent

Connect:localhost       RELAY
GreetPause:localhost    0
ClientRate:localhost    0
ClientConn:localhost    0

Connect:127             RELAY
GreetPause:127          0
ClientRate:127          0
ClientConn:127          0
Connect:IPv6:::1        RELAY
GreetPause:IPv6:::1     0
ClientRate:IPv6:::1     0
ClientConn:IPv6:::1     0

# Defaults
GreetPause:             5000
ClientRate:             10
ClientConn:             10

Spam:postmaster@    FRIEND
Spam:abuse@     FRIEND
Spam:spam@      FRIEND

#Connect:0      REJECT whilst invalid, this also blocks sendmail -bs -Am
Connect:169.254 REJECT
Connect:192.0.2 REJECT
Connect:224     REJECT
Connect:255     REJECT

220 banner-something-something
EHLO mailer.example.com
250-banner response
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-8BITMIME
250-STARTTLS
MAIL FROM: foo@example.com
250 2.1.0 Sender ok
RCPT TO: bar@example.com
250 2.1.5 Recipient ok
DATA
550-5.7.1 [10.10.10.10] Mail from this IP has been blacklisted due to user
550-5.7.1 complaints.  Please visit our website to get de-listed
554 5.0.0 Service unavailable

Sep  2 17:38:19 mail sm-mta[5525]: r82C8CtA005523: r82C8JtA005525: DSN: Service unavailable

Sep  2 17:38:19 mail sm-mta[5525]: r82C8CtA005523: to=<suhaskekuda@gmail.com>, ctladdr=<root@mail.server.local> (0/0), delay=00:00:06, xdelay=00:00:06, mailer=esmtp, pri=120373, relay=gmail-smtp-in.l.google.com. [173.194.79.27], dsn=5.0.0, stat=Service unavailable