我想问问在sendmail中为什么会多一个xmailbak的用户

bjbwlong

sendmail重装的，用户是我一个一个添加的，不知道为什么用户里多了一个<br>
xmailbak的用户，而且在我以前的sendmail中也有这个用户，在老的sendmail里这个用户给我们公司的局域网的有几个用户发过垃圾邮件（很多封），这个文件起什么作用，我删除过他，看log还是能看见他在接收（to邮件），不管是外面给公司发的还是公司往外发的，新建xmailbak用户密码，用outlook接收他，里面又很多邮件，希望大家都来看看，帮忙分析一下，这里还要感谢总版主发的文档，谢谢

bjbwlong

Mar 29 13:14:41 localhost sendmail[6372]: k2S221sD003254: to=<dsatae@DriFting.88ip.Cn>, delay=23:47:49, xdelay=00:01:05, mailer=esmtp, pri=2196576, relay=219.136.141.7. [219.136.141.7], dsn=4.0.0, stat=Deferred: Connection timed out with 219.136.141.7.<br>
Mar 29 13:17:06 localhost sendmail[6372]: k2S421Kb003601: to=<WA1309@ZXCV12.88IP.NET>, delay=23:22:22, xdelay=00:01:10, mailer=esmtp, pri=2198027, relay=219.134.28.162. [219.134.28.162], dsn=4.0.0, stat=Deferred: Connection timed out with 219.134.28.162.<br>
Mar 29 13:17:12 localhost sendmail[6372]: k2S321L4003536: to=<WA2059@ZXCV12.88IP.NET>, delay=23:22:27, xdelay=00:00:06, mailer=esmtp, pri=2198033, relay=219.134.28.162., dsn=4.0.0, stat=Deferred: Connection timed out with 219.134.28.162.<br>
Mar 29 13:18:19 localhost sendmail[6372]: k2S321LZ003536: to=<sender@mail.ettoday.com.tw>, delay=23:23:34, xdelay=00:01:03, mailer=esmtp, pri=2207975, relay=mail.ettoday.com.tw. [210.58.99.129], dsn=4.0.0, stat=Deferred: Connection timed out with mail.ettoday.com.tw.<br>
Mar 29 13:18:36 localhost sendmail[6372]: k2S421Jk003601: to=<hjrve2@f12f6.com>, delay=1+00:11:07, xdelay=00:00:12, mailer=esmtp, pri=2213218, relay=219.134.73.165. [219.134.73.165], dsn=4.0.0, stat=Deferred: Connection refused by 219.134.73.165.<br>
Mar 29 13:19:02 localhost sendmail[6372]: k2S321Ko003536: to=<ucschool@51uc.com>, delay=23:24:18, xdelay=00:00:21, mailer=esmtp, pri=2222215, relay=pop3.sina100.com. [202.108.37.108], dsn=4.0.0, stat=Deferred: Connection reset by pop3.sina100.com.<br>
Mar 29 13:20:10 localhost sendmail[6372]: k2S321KZ003536: to=<5crqymfkz@hxqg123.meibu.com>, delay=23:25:26, xdelay=00:01:06, mailer=esmtp, pri=2227218, relay=125.213.76.17. [125.213.76.17], dsn=4.0.0, stat=Deferred: Connection timed out with 125.213.76.17.<br>
Mar 29 13:21:36 localhost sendmail[6372]: k2S321Jm003536: to=<gexinglingsheng@gexing.com>, delay=1+01:34:41, xdelay=00:01:13, mailer=esmtp, pri=2282080, relay=gexing.com. [219.238.238.171], dsn=4.0.0, stat=Deferred: Connection timed out with gexing.com.<br>
Mar 29 13:22:36 localhost sendmail[6372]: k2S221rf003254: to=<mts@lebanon-online.com.lb>, delay=1+02:14:10, xdelay=00:01:00, mailer=esmtp, pri=2305519, relay=mail.lebanon-online.com.lb. [64.26.62.254], dsn=4.0.0, stat=Deferred: Connection timed out with mail.lebanon-online.com.lb.<br>
Mar 29 13:22:42 localhost sendmail[6372]: k2S221rq003254: to=<nobody@www.globehr.com>, delay=1+01:27:30, xdelay=00:00:06, mailer=esmtp, pri=2375805, relay=www.globehr.com. [61.162.230.2], dsn=4.0.0, stat=Deferred: Connection refused by www.globehr.com.<br>
<br>
我看了log，这些都是什么东西，是给什么地方发的邮件，谁发的都是，我看不太明白，给我分析一下，谢谢，现在是不是成了垃圾服务器呀

bjbwlong

斑竹能给我看看吗，这些都是什么问题，谢谢了