postfix 无法收到自己发的信和其他邮箱的信

rigofree

posstfix +mysql+maildrop+ExtMan+Mailman
可以发出邮件，但无法收到发过来的邮件，自己给自己发的也收不到
用sina发信 退回的信息

This is the mail system at host mail.xxxxxx.cn.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                   The mail system

<test@xxxxx.cn>: unknown user: "test"

maillog 日志

Jul 31 17:30:05 www postfix/qmgr[2430]: 118E9866818: from=<2001@sina.com>, size=1565, nrcpt=1 (queue active)
Jul 31 17:30:05 www postfix/trivial-rewrite[2476]: warning: do not list domain xxxxxx.cn in BOTH mydestination and virtual_mailbox_domains
Jul 31 17:30:05 www postfix/local[2477]: 118E9866818: to=<test@xxxxx.cn>, relay=local, delay=1463, delays=1463/0.02/0/0.01, dsn=5.1.1, status=bounced (unknown user: "test")
Jul 31 17:30:05 www postfix/cleanup[2479]: 2A8AE86683C: message-id=<20080731093005.2A8AE86683C@mail.xxxxxx.cn>
Jul 31 17:30:05 www postfix/bounce[2478]: 118E9866818: sender non-delivery notification: 2A8AE86683C
Jul 31 17:30:05 www postfix/qmgr[2430]: 2A8AE86683C: from=<>, size=3285, nrcpt=1 (queue active)
Jul 31 17:30:05 www postfix/qmgr[2430]: 118E9866818: removed
Jul 31 17:30:09 www postfix/smtp[2471]: 2A8AE86683C: to=<2001@sina.com>, relay=freemx3.sinamail.sina.com.cn[60.28.2.248]:25, delay=3.8, delays=0.01/0/3.4/0.42, dsn=2.0.0, status=sent (250 ok:  Message 196815299 accepted)
Jul 31 17:30:09 www postfix/qmgr[2430]: 2A8AE86683C: removed
要怎么调

ruochen

unknown user: "test"

sosogh

Jul 31 17:30:05 www postfix/trivial-rewrite[2476]: warning: do not list domain xxxxxx.cn in BOTH mydestination and virtual_mailbox_domains

Jul 31 17:30:05 www postfix/local[2477]: 118E9866818: to=<test@xxxxx.cn>,