在 ubuntu 16.04 上使用 Exim 設置 spammassin 和 clamav

我一直在尋找使用 Exim 設置 Spammassassin 和 ClamAV 的幫助（在 ubuntu-16.04 上），但所有指南都已經過時了。有人可以分享他們的設置嗎？

指南可能相當陳舊，但設置過程並沒有真正改變。Exim4 規範包括關於在 ACL 時進行內容掃描的一章，應該可以幫助您入門。我相信您需要安裝exim4-daemon-heavy才能進行掃描。

這是我的配置的一個摘要。我已經剝離了一些研究功能。

安裝clamav後，您需要取消註釋主配置讀取中的行：

av_scanner = clamd:/var/run/clamav/clamd.ctl

如果/etc/exim4/conf.d/main/02_exim4-config_options您使用的是拆分配置，或者/etc/exim4/exim4.conf.template您使用的是單個配置文件選項，則會出現此選項。

進行掃描的最簡單方法是像這樣創建一個本地數據 acl /etc/exim4/acls/40_local-config_check-data。

# --------------------------------------------------------------------
# Anti-Virus scanning
# This requires an 'av_scanner' setting in the main section.

# Defer if we find malware
defer
 malware = */defer_ok retry=60

# --- BEGIN EXISCAN configuration ---
# Invoke SpamAssassin to obtain $spam_score and $spam_report.
# SA: log messages emulate sa-exim output for eximstats
#
# If the message is classified as spam, and we have not previously
# set $acl_m_sa to indicate that we want to accept it anyway,
# reject it.

# Add a spam flag
warn
 spam = mail:true
 add_header = X-Spam-Connect-Host: $sender_fullhost
 add_header = X-Spam-Mail-From: $sender_address
 add_header = X-Spam-Recipients: $recipients
 add_header = X-Spam-Flag: ${if >= {$spam_score_int}{SPAM_LIMIT}{YES}{NO}}
 add_header = X-Spam-Level: ${tr{$spam_bar}{+}{*}}

# Add headers for data we will be reporting
warn
 condition = ${if >= {$spam_score_int}{SPAM_REPORT}}
 add_header = X-Spam-Report: $spam_report

# New Subject for BACN and SPAM
warn
 condition = ${if >= {$spam_score_int}{SPAM_IS_HAM}}
 add_header = X-Spam-Subject: $h_Subject
 remove_header = Subject
 add_header = Subject: ${if < {$spam_score_int}{SPAM_IS_BACN} \
     {BACN}{SPAM}} $spam_score: $h_Subject

# Blackhole serious Spam
discard
 condition = ${if eq {$acl_m_sa}{canreject}}
 condition = ${if >= {$spam_score_int}{SPAM_BLACKHOLE}}
 message = Discard recipients for this message spam $spam_score.
 logwrite = SA: Action: Blackholed message: score=$spam_score. \
     From \<$sender_address\> $sender_fullhost for $recipients

# Deny Spam
deny
 condition = ${if eq {$acl_m_sa}{canreject}}
 condition = ${if >= {$spam_score_int}{SPAM_REJECT}}
 message = This message looks like spam $spam_score.
 logwrite = SA: Action: permanently rejected message: score=$spam_score. \
     From \<$sender_address\> $sender_fullhost for $recipients

您需要定義垃圾郵件限制值。這些進入/etc/exim4/conf.d/main/00_local_macros或/etc/exim4/exim4.conf.localmacros取決於您使用的配置文件方法。

# Spamassassin
SPAM_REPORT = -10
SPAM_IS_HAM = 25
SPAM_LIMIT = 35
SPAM_IS_BACN = 50
SPAM_REJECT = 100
SPAM_BLACKHOLE = 200

該變數acl_m_sa設置為指示這是郵件管理員/濫用郵件還是發送給使用者。這記錄在sa-exim包的註釋中。您可能更喜歡使用sa-exim而不是EXISCAN上面的 ACL 部分。

引用自：https://serverfault.com/questions/804339