小弟是個新手,自己爬文設了一個MailServer,是用虛擬機設的
設完可以寄信,但從外部回信root的帳號可以收信,其他使用者卻無法收信。

外部信箱寄給那個使用者會被退信Diagnostic-Code: X-Postfix; unknown user: "dopa"
顯示這個

你好,以下是我的MAILLOG ,我之前爬過文 , 不知道是不是我MYDESTINATION設錯呢?

Aug 31 08:15:51 localhost postfix/smtpd[305]: warning: hostname pcgpcft.com does not resolve to address 180.150.151.4

Aug 31 08:15:51 localhost postfix/smtpd[305]: connect from unknown[180.150.151.4]

Aug 31 08:15:51 localhost postfix/smtpd[305]: 5C16922918F5: client=unknown[180.150.151.4]

Aug 31 08:15:51 localhost postfix/cleanup[506]: 5C16922918F5: message-id=

Aug 31 08:15:51 localhost postfix/smtpd[305]: disconnect from unknown[180.150.151.4]

Aug 31 08:15:51 localhost postfix/qmgr[3230]: 5C16922918F5: from=, size=1241, nrcpt=1 (queue active)

Aug 31 08:15:51 localhost postfix/local[533]: 5C16922918F5: to=, relay=local, delay=0.08, delays=0.04/0/0/0.0

4, dsn=5.1.1, status=bounced (unknown user: "dopa")

Aug 31 08:15:51 localhost postfix/cleanup[506]: 7004B22918F8: message-id=20180831001551.7004B22918F8@mail.taiying-tech.com

Aug 31 08:15:51 localhost postfix/bounce[27788]: 5C16922918F5: sender non-delivery notification: 7004B22918F8

Aug 31 08:15:51 localhost postfix/qmgr[3230]: 7004B22918F8: from=<>, size=3147, nrcpt=1 (queue active)

Aug 31 08:15:51 localhost postfix/qmgr[3230]: 5C16922918F5: removed