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Amavis

Amavisd-new integration. This module will allow the below features to be specified/used on a per policy basis.

Bypass Checks

These features allow one to bypass certain checks for a policy.

  • Bypass Virus Checks
    • Amavis feature virus_lovers_maps & bypass_virus_checks_maps
    • Bypass virus checks are done if some recipients in the email have requested anti-virus features, in this case however the result is ignored.
  • Bypass Banned File Checks
    • Amavis feature banned_files_lovers_maps & bypass_banned_checks_maps
    • Bypass filename checks and file content checks.
  • Bypass Spam Checks
    • Amavis feature spam_lovers_maps & bypass_spam_checks_maps
    • Bypass spam checks.
  • Bypass Header Checks
    • Amavis feature bad_header_lovers_maps & bypass_header_checks_maps
    • Bypass header checks.

Anti-spam

Antispam settings, mostly relating to Amavisd-new's SpamAssassin capabilities.

  • Spam tag level
    • Amavis feature spam_tag_level_maps
    • Spam score at which to tag email as being clean.
  • Spam tag 2 level
    • Amavis feature spam_tag2_level_maps
    • Spam score at which to tag email as being spammy.
  • Spam tag 3 level
    • Amavis feature spam_tag3_level_maps
    • Spam score at which to tag email as being spammy, but may insert a different subject line (tag3).
  • Spam kill level
    • Amavis feature spam_kill_level_maps
    • Spam score at which to trigger evasive action (reject, quarantine).
  • Spam DSN cutoff level
    • Amavis feature spam_dsn_cutoff_level_maps
    • Spam score at which not to generate delivery status notifications.
  • Spam Quarantine Cutoff Level
    • Amavis feature spam_quarantine_cutoff_level_maps
    • Score at which not to quarantine.
  • Modify subject
    • Amavis feature spam_modifies_subj_maps
    • Modify email subject for this policy if spam is detected.
  • Spam tag subject
    • Amavis feature spam_subject_tag_maps
    • Subject to prepend to the email message when message exceeds spam tag level. [POSSIBLE_SPAM:_REQD_/_SCORE_]
  • Spam tag 2 subject
    • Amavis feature spam_subject_tag2_maps
    • Subject to prepend to the email message when message exceeds spam tag 2 level. [SPAM:_REQD_/_SCORE_]
  • Spam tag 3 subject
    • Amavis feature spam_subject_tag3_maps
    • Subject to prepend to the email message when message exceeds spam tag 3 level. [SPAM!!:_REQD_/_SCORE_]

Email Message Checks

Various email message checks.

  • Max Message Size
    • Amavis feature message_size_limit_maps
    • Maximum message size allowed. This is in Kbytes.
  • Banned File List
    • Amavis feature banned_filename_maps
    • List of filename extensions and/or types to ban. Separated by , or ; or newline or whitespace.
    • .exe,.bat,.dll,audio/*,video/*

Whitelist & Blacklist

Allows whitelisting and blacklisting of senders.

  • Whitelist Senders
    • Amavis feature per_recip_whitelist_sender_lookup_tables
    • Whitelist these senders, this allows them to always bypass the various checks. Remeber however sender addresses can be forged!
  • Blacklist Senders
    • Amavis feature per_recip_blacklist_sender_lookup_tables
    • Blacklist these senders, this will automatically declare the email message as being spam.

Admin Notifications

These settings allow an andministrator to be notified when certain detections occur.

  • Notify on New Virus
    • Amavis feature newvirus_admin_maps
    • Send newly encountered virus notifications to this address.
  • Notify on Virus
    • Amavis feature virus_admin_maps
    • Send virus notifications to this address.
  • Notify on Spam
    • Amavis feature spam_admin_maps
    • Send spam notifications to this address.
  • Notify on Banned File
    • Amavis feature banned_admin_maps
    • Send banned file notifications to this address.
  • Notify on Bad Header
    • Amavis feature bad_header_admin_maps
    • Send bad header notifications to this address.

Quarantine

These settings control how emails are quarantined.

  • Quarantine Viruses
    • Amavis feature virus_quarantine_to_maps
    • Email address or facility to quanrantine emails containing viruses to.
  • Quarantine Banned Files
    • Amavis feature banned_quarantine_to_maps
    • Email address or facility to quanrantine emails matching the banned files list to.
  • Quarantine Bad Headers
    • Amavis feature bad_header_quarantine_to_maps
    • Email address or facility to quanrantine emails matching the bad headers list to.
  • Quarantine Spam
    • Amavis feature spam_quarantine_to_maps
    • Email address or facility to quanrantine spam emails to.

Interception

These settings allow an administrator to intercept email and BCC it to another address.

  • BCC To
    • Amavis feature always_bcc
    • BCC email to another address.

Server Configuration

Configuration for this module is done in the Amavis section in the configuration file.

enable (Supported in: r420+, v2.1.x)

Set to 1 if you wish to enable this module. Default 0 (disabled). Note on versions prior to r420, v2.1.x Before r420 if the module was loaded Amavis was enabled.

amavis.txt · Last modified: 2013/12/06 11:45 by rspencer