Why sendmail sucks

before.log

Oct 21 19:11:39  sendmail[20611]: unable to qualify my own domain name (AY1210150342185b33738) -- using short name
Oct 21 19:11:39  sendmail[20611]: q9LBBdDv020611: [email protected], size=2840, class=0, nrcpts=3, msgid=<[email protected]>, relay=root@localhost
Oct 21 19:11:39  sm-mta[20624]: q9LBBdEI020624: from=<[email protected]>, size=2971, class=0, nrcpts=3, msgid=<[email protected]>, proto=ESMTP, daemon=MTA-v4, relay=localhost [127.0.0.1]
Oct 21 19:11:39  sendmail[20611]: q9LBBdDv020611: [email protected],[email protected],[email protected], [email protected] (0/0), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=92840, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (q9LBBdEI020624 Message accepted for delivery)
Oct 21 19:11:40  sm-mta[20626]: STARTTLS=client, relay=aspmx.l.google.com., version=TLSv1/SSLv3, verify=FAIL, cipher=ECDHE-RSA-RC4-SHA, bits=128/128
Oct 21 19:11:43  sm-mta[20626]: q9LBBdEI020624: to=<[email protected]>,<[email protected]>, delay=00:00:04, xdelay=00:00:04, mailer=esmtp, pri=182971, relay=aspmx.l.google.com. [74.125.25.27], dsn=2.0.0, stat=Sent (OK 1350817903 ny6si9999618pbb.226)
Oct 21 19:11:52  sm-mta[20626]: q9LBBdEI020624: to=<[email protected]>, delay=00:00:13, xdelay=00:00:09, mailer=esmtp, pri=182971, relay=mx3.qq.com. [113.108.64.240], dsn=5.0.0, stat=Service unavailable
Oct 21 19:11:52  sm-mta[20626]: q9LBBdEI020624: q9LBBqEI020626: DSN: Service unavailable
Oct 21 19:11:53  sm-mta[20626]: q9LBBqEI020626: to=<[email protected]>, delay=00:00:01, xdelay=00:00:01, mailer=esmtp, pri=30000, relay=aspmx.l.google.com. [74.125.25.27], dsn=2.0.0, stat=Sent (OK 1350817913 ny6si9999618pbb.226)