postfix配置问题，邮件发出去了，在收件箱里没接受到？

cxw06023273

小弟最近配置postfix的邮件代理，在配置好后，发邮件总是发出去接收不到，请各位帮帮忙看下，谢了。
main.cf:

1. alias_database = hash:/etc/aliases
   
2. alias_maps = hash:/etc/aliases
   
3. command_directory = /usr/sbin
   
4. config_directory = /etc/postfix
   
5. daemon_directory = /usr/libexec/postfix
   
6. data_directory = /var/lib/postfix
   
7. debug_peer_level = 2
   
8. html_directory = no
   
9. inet_interfaces = all
   
10. inet_protocols = all
    
11. mail_owner = postfix
    
12. mailq_path = /usr/bin/mailq.postfix
    
13. manpage_directory = /usr/share/man
    
14. mydestination =
    
15. mydomain = ximotech.com
    
16. myhostname = xmntc.ximotech.com
    
17. mynetworks_style = host
    
18. myorigin = ximotech.com
    
19. newaliases_path = /usr/bin/newaliases.postfix
    
20. queue_directory = /var/spool/postfix
    
21. readme_directory = /usr/share/doc/postfix-2.6.5/README_FILES
    
22. relay_domains =
    
23. sample_directory = /usr/share/doc/postfix-2.6.5/samples
    
24. sendmail_path = /usr/sbin/sendmail.postfix
    
25. setgid_group = postdrop
    
26. unknown_local_recipient_reject_code = 550
    

复制代码

测试：

1. [root@xmntc /]# mail cxw06023273@126.com
   
2. Subject: hello postfix!
   
3. 2010-10-09
   
4. .
   
5. EOT
   

复制代码

日志：

1. [root@xmntc /]# tail /var/log/maillog
   
2. Oct 10 01:25:06 xmntc postfix/pickup[29448]: 23BD1E023D: uid=0 from=<root>
   
3. Oct 10 01:25:06 xmntc postfix/cleanup[6882]: 23BD1E023D: message-id=<20101009172506.23BD1E023D@xmntc.ximotech.com>
   
4. Oct 10 01:25:06 xmntc postfix/qmgr[29449]: 23BD1E023D: from=<root@ximotech.com>, size=445, nrcpt=1 (queue active)
   
5. Oct 10 01:25:07 xmntc postfix/smtp[6885]: 23BD1E023D: to=<cxw06023273@126.com>, relay=126mx02.mxmail.netease.com[220.181.15.132]:25, delay=1.5, delays=0.43/0.12/0.77/0.17, dsn=5.0.0, status=bounced (host 126mx02.mxmail.netease.com[220.181.15.132] said: 554 DT:SPM mx2, IMmowLC7dwcEMbBMek4+Aw--.201S2 1286615300 http://mail.163.com/help/help_spam_16.htm?ip=123.160.228.228&hostid=mx2&time=1286615300 (in reply to end of DATA command))
   
6. Oct 10 01:25:07 xmntc postfix/cleanup[6882]: 6698CE023E: message-id=<20101009172507.6698CE023E@xmntc.ximotech.com>
   
7. Oct 10 01:25:07 xmntc postfix/qmgr[29449]: 6698CE023E: from=<>, size=2576, nrcpt=1 (queue active)
   
8. Oct 10 01:25:07 xmntc postfix/bounce[6890]: 23BD1E023D: sender non-delivery notification: 6698CE023E
   
9. Oct 10 01:25:07 xmntc postfix/qmgr[29449]: 23BD1E023D: removed
   
10. Oct 10 01:25:09 xmntc postfix/smtp[6885]: 6698CE023E: to=<root@ximotech.com>, relay=mx.ym.163.com[114.113.199.105]:25, delay=2, delays=0.03/0/0.79/1.2, dsn=5.0.0, status=bounced (host mx.ym.163.com[114.113.199.105] said: 550 User not found: root@ximotech.com (in reply to RCPT TO command))
    
11. Oct 10 01:25:09 xmntc postfix/qmgr[29449]: 6698CE023E: removed
    

复制代码

发送后打开邮箱发现没接收到邮件，感觉是550 User not found: root@ximotech.com，但是用域名用nslookup解析能解析出来，怎么回事呢？

cxw06023273

大家都没遇到过吗？还是我描述的有问题呢？

cxw06023273

顶下.....

cxw06023273

到底怎么回事呢？各位有啥意见，说下啊，先谢了啊

cxw06023273

已解决，mydestination目的地址里边不能设置$mydomain