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Fixing limitations for Exim integration with Bitdefender Security for Mail Servers version 3.1.7 (Linux)

Bitdefender Security for Mail Servers version 3.1.7 (Linux) supports Exim integration starting with version 4.84.2, but with some limitations that are described in this section.

Bitdefender Security for Mail Servers protects Linux mail servers for known and unknown security threats with award winning proactive antivirus, antispyware, antispam, antiphishing, content and attachment filtering technologies. The solution secures organizations email services and provides increased productivity by blocking spam and providing common centralized management tools.

  1. If the Exim configuration is split into multiple files, Bitdefender will not support the integration.

    The administrators will encounter the following error during installation/setup:

    Enter your option (Detected: 7): 7

    Your option: exim

    Checking /etc/exim/exim.conf for existence ...

    Checking /etc/exim4/exim4.conf for existence ...

    Error: No configuration file found for EXIM.

    How to fix it

    An administrator can choose to build a single Exim configuration file using this line:

    # update-exim4.conf --keepcomments --output /etc/exim4/exim4.conf

    and running again the Bitdefender setup:

    # /opt/BitDefender/bin/bd setup

    You can find more information at https://wiki.debian.org/Exim.

  2. Due to missing ACL feature from exim4-daemon-light, the email will be rejected after Bitdefender integration

    In /var/log/exim4/rejectlog, the administrators will find this error:

    "2017-07-03 12:09:16 1dRxLp-0001ji-Jt H=localhost (me) [127.0.0.1] F=<root@localhost> temporarily rejected after DATA:

    failed to expand ACL string "${if !eq {${dlfunc{/opt/BitDefender/var/lib/libdexim.so} {dl_scan}{/opt/BitDefender/var/run/bdexim}

    {/var/spool/exim4/input/}{/var/spool/exim4/scan/}}} {OK}}": "${dlfunc" encountered, but this facility is not included in this binary"

    How to fix it

    An administrator can choose to upgrade to exim4-daemon-heavy (Exim MTA v4 daemon with extended features, including exiscan-acl).

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