推荐 postfix+mailscanner 主要是有 mrtg支持 结构上不如postfix+am[13]

]#cp -rp /etc/postfix /etc/posfix.in

修改/etc/postfix.in/main.cf,加入此行,以確保incoming的postfix不拒收任何
信,並將 queue_directory由/var/spool/postfix改為postfix.in
defer_transports = smtp local virtual relay
queue_directory = /var/spool/postfix.in

將正常的Postfix的SMTP功能停掉，以確保所有的SMTP都是走incoming postfix進
出的:
修改 /etc/postfix/master.cf,修改此行,前面加上"#":
#smtp inet n n n - - smtpd

接下來將 /var/spool/postfix, 複製一份postfix.in，作為incoming postfix的目錄
]#cp -rp /var/spool/postfix /var/spool/postfix.in

增加spamassassin的目錄
mkdir /var/spool/MailScanner/spamassassin

修改/var/spool/MailScanner裡目錄的屬性
]#chown postfix.postfix /var/spool/MailScanner/incoming
]#chown postfix.postfix /var/spool/MailScanner/quarantine
]#chown postfix.postfix /var/spool/MailScanner/spamassassin

編輯MailScanner的設定檔
]#vi /etc/MailScanner/MailScanner.conf

修改以下項目,請依自己需求修改:
-----------------------------------------------------------
Incoming Queue Dir = /var/spool/postfix.in/deferred
Outgoing Queue Dir = /var/spool/postfix/incoming
Run As User = postfix
Run As Group = postfix
MTA = postfix
Expand TNEF = no (Sophos/McAfee設定為 "no"，其它是"yes")
Use SpamAssassin = yes
SpamAssassin User State Dir =/var/spool/MailScanner/spamassassin
Virus Scanning = yes
Virus Scanners = sophossavi
Sophos IDE Dir = /usr/local/sav
Sophos Lib Dir = /usr/local/lib
Monitors For Sophos Updates = /usr/local/sav/*ides.zip
Deliver Unparsable TNEF = yes (使用outlook的user可能需要)
Allow IFrame Tags = yes (允許IFrame標籤的信件)
Allow Script Tags = yes (允許Script標籤的信件,一些像outlook內有信紙功能
的郵件需插入Script Tags)
Allow Object Codebase Tags = yes (允許 HTML中的 <Object Codebase=...> 標
籤包含在郵件中)
Attachment Encoding Charset = ISO-8859-1 (將感染通知訊息以附件寄送,並編
碼為ISO-8859-1,若Warning Is Attachment = no,不以附件寄送,可能產生亂碼)
Still Deliver Silent Viruses = no (通知收信者有人寄送Silent Virus[偽造地
址病毒]給你)
Quarantine Silent Viruses = no (不隔離Silent Virus,以免佔空間)
Mark Infected Messages = no (通知收信者去閱讀那些替代原本被感染的附件的
感染報告檔案)
Mark Unscanned Messages = no (若檔案未經掃瞄,通知你的使用者不要去使用這
個郵件。)
Rebuild Bayes Every = 3600
SpamAssassin Auto Whitelist = yes