修複Postfix 的Relay access denied問題

最近發郵件一直有這個錯誤

Apr 12 18:59:04 ZaphodBeeblebrox postfix/smtpd[10669]: NOQUEUE: reject: RCPT from mail.elmarotter.eu[83.161.154.53]: 554 5.7.1 <elmar283ATgmail.com>: Relay access denied; from=<elmarATelmarotter.nl> to=<elmar283ATgmail.com> proto=ESMTP helo=<[192.168.0.16]> 
           

後來檢視了不少文檔， 發現是postfix 更新到 2.10.0的問題，

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 before. 
           

在/etc/postfix/main.cnf中加上

smtpd_relay_restrictions = permit_mynetworks,permit_sasl_authenticated,defer_unauth_destination
           

 就能解決這個問題。

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