使用postfix发邮件被拒(UBE)的处理

postfix邮件退信

主题: DELIVERY FAILURE: 554 5.7.0 Reject, id=12318-15 - SPAM

A message from <antonio@krisun.com>
to: issam.safadi@gmail.com
was considered unsolicited bulk e-mail (UBE).
Our internal reference code for your message is 12318-15/1p81hd+0AJtJ
The message carried your return address, so it was either a genuine mail from you, or a sender address was faked and your e-mail address abused by third party, in which case we apologize for undesired notification.
We do try to minimize backscatter for more prominent cases of UBE and for infected mail, but for less obvious cases some balance between losing genuine mail and sending undesired backscatter is sought, and there can be some collateral damage on either side.
First upstream SMTP client IP address: [172.16.16.11] ekpserver.kirisun.com.
cn
According to a 'Received:' trace, the message apparently originated at:
[221.230.134.76], PC200808231249 [221.230.134.76]
Return-Path: <antonio@krisun.com>
From: "Antonio.Kirisun" <antonio@krisun.com>
Message-ID: <OF0BFE3BFC.60A72844-ON482578ED.0009EC0B@krisun.com>
Subject: =?UTF-8?B?562U5aSNOiDnrZTlpI06IOetlOWkjTogZ3JlZXRpbmc=?=
Delivery of the email was stopped!

解决方法：

[align=left]修改/etc/amavisd.conf配置文件[/align]

1. 修改$final_spam_destiny配置值

[align=left]将其从默认的D_BOUNCE修改为D_PASS[/align]

2.$sa_kill_level_deflt

[align=left]将其从默认的5.0修改为8.0，降低反垃圾邮件能力 [/align]
修改完以后，执行 amavisd reload 重新应用规则