sendmail 邮件系统被中转

lq2003

           本人搭建的sendmail，dovecot，salsalt系统被邮件中转了啊。
哪位大侠帮看看是哪里设置出问题，还是邮箱密码泄露造成的，谢谢！！   test1@tianjineco-city.com 这个不是我们的邮箱，它怎么能登上我的邮箱系统来转发那么多的垃圾邮件呢？

Jul  2 16:48:07 unionrk sendmail[12893]: q628lqA6012893: from[fly]=<test1@tianjineco-city.com>, [/fly]size=2418, class=0, nrcpts=50, msgid=<201207020847.q628lqA6012893@unionrk.com.cn>, proto=ESMTP, daemon=MTA, relay=50-56-242-84.static.cloud-ips.com [50.56.242.84]
Jul  2 16:48:07 unionrk sendmail[12903]: q628lhLq012843: to=<bert632@aol.com>,<bert11488@aol.com>,<berryxio@aol.com>,<berosen@aol.com>,<berns27@aol.com>,<bernikowm@aol.com>, delay=00:00:21, xdelay=00:00:02, mailer=esmtp, pri=1592418, relay=mailin-04.mx.aol.com. [64.12.138.161], dsn=4.0.0, stat=Deferred: 421 4.7.1 : (DNS:NR) http://postmaster.info.aol.com/errors/421dnsnr.html
Jul  2 16:48:08 unionrk sendmail[12866]: q628lUOZ012820: to=<bernab@centurytel.net>, delay=00:00:36, xdelay=00:00:14, mailer=esmtp, pri=1592418, relay=mx1c35.carrierzone.com. [209.235.147.38], dsn=5.7.1, stat=User unknown
Jul  2 16:48:08 unionrk sendmail[12746]: q628kF84012697: to=<bdooley@santel.net>, delay=00:01:51, xdelay=00:00:22, mailer=esmtp, pri=1592418, relay=mail-virtual.gwtc.net. [64.251.173.141], dsn=5.1.1, stat=User unknown
Jul  2 16:48:08 unionrk sendmail[12802]: q628ktae012782: to=<beckyf@x10.com>, delay=00:01:11, xdelay=00:00:07, mailer=esmtp, pri=1592418, relay=mail-gw.x10.com. [63.211.210.18], dsn=2.0.0, stat=Sent (Ok: queued as BD55AD4075)
Jul  2 16:48:08 unionrk sendmail[12832]: q628lElU012806: to=<benjamin.j.walker@guycarp.com>, delay=00:00:52, xdelay=00:00:07, mailer=esmtp, pri=1592418, relay=mx50v1.marsh.com. [168.168.42.33], dsn=2.0.0, stat=Sent (ok:  Message 352364446 accepted)



  谢谢各位帮顶和找出可能的问题。谢谢！