最近发邮件一直有这个错误

Apr 12 18:59:04 ZaphodBeeblebrox postfix/smtpd[10669]: NOQUEUE: reject: RCPT from mail.elmarotter.eu[83.161.154.53]: 554 5.7.1 
    
     : Relay access denied; from=
     
       to=
      
        proto=ESMTP helo=<[192.168.0.16]>
      
     
    

后来查看了不少文档， 发现是postfix 升级到 2.10.0的问题，

2.10的release中增加了

smtpd_relay_restrictions

* COMPATIBILITY: adding smtpd_relay_restrictions to main.cf* to prevent inbound mail from unexpectedly bouncing.* Specify an empty smtpd_relay_restrictions value to keep using* smtpd_recipient_restrictions as bee.

在/etc/postfix/main.cnf中加上

smtpd_relay_restrictions = permit_mys,permit_sasl_authenticated,defer_unauth_destination

就能解决这个问题。

http://extjs2.iteye.com/admin/blogs/1928259