Mail::Exim::ACL::Attachments

A Perl module for the Exim mailer that checks email attachments for blocked filenames. Common executable, macro-enabled and archive file formats are identified.

acl_check_mime:

  warn
    condition = ${if and{{def:mime_filename} \
     {!match{${lc:$mime_filename}}{\N\.((json|xml)\.gz|zip)$\N}} \
     {eq{${perl{check_filename}{$mime_filename}}}{blocked}}}}
    set acl_m_blocked = yes

  warn
    condition = ${if match{${lc:$mime_filename}}{\N\. *(jar|zip)$\N}}
    decode = default
    condition = ${if eq{${perl{check_zip}{$mime_decoded_filename}}} \
                       {blocked}}
    set acl_m_blocked = yes

  accept

DEPENDENCIES

Requires the Perl modules Exporter and IO::Uncompress::Unzip, which are distributed with Perl.

INSTALLATION

Run the following commands to install the software:

perl Makefile.PL
make
make test
make install

Type the following command to see the module usage information:

perldoc Mail::Exim::ACL::Attachments

LICENSE AND COPYRIGHT

Copyright (C) 2024 Andreas Vögele

This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.