Hi list and Giovanni,
I *think* I might have figured out what was wrong ...
I Googled for the expression: "mimedefang undefined subroutine
&main::do_main_loop", which was showing up in: /var/log/maillog.
This brought me to a mailing list archive message[1], that is admittedly
old (reply in question at the bottom of webpage is from 19 years ago),
and targets Linux, but had a suggestion to try the following when
receiving this error:
$ mimedefang.pl -test
This results in the following output:
Can't locate Net/DNS.pm in @INC (you may need to install the Net::DNS
module) (@INC contains: /usr/local/bin/modules/lib
/usr/local/libdata/perl5/site_perl/amd64-openbsd
/usr/local/libdata/perl5/site_perl /usr/libdata/perl5/amd64-openbsd
/usr/libdata/perl5) at
/usr/local/libdata/perl5/site_perl/Mail/MIMEDefang/Net.pm line 27.
BEGIN failed--compilation aborted at
/usr/local/libdata/perl5/site_perl/Mail/MIMEDefang/Net.pm line 27.
Compilation failed in require at /usr/local/bin/mimedefang.pl line 36.
BEGIN failed--compilation aborted at /usr/local/bin/mimedefang.pl line 36.
I then pulled down the Perl package: Net::DNS from packages and re-ran:
mimedefang.pl -test, which now results in:
Filter /etc/mail/mimedefang-filter seems syntactically correct.
Now when I restarted mimedefang_multiplexor and mimedefang and submit a
test message with a fake: .exe attachment I see in: /var/log/maillog:
Jun 23 19:03:03 server mimedefang.pl[22055]: checking message
8eada11c61e2efdc
Jun 23 19:03:03 server mimedefang.pl[87731]: 8eada11c61e2efdc:
MDLOG,8eada11c61e2efdc,bad_filename,attachment.exe,application/octet-stream,<r...@server.home.arpa>,develo...@server.home.arpa,
Test #3 - ATTACHMENT
Jun 23 19:03:03 server mimedefang.pl[87731]: 8eada11c61e2efdc:
MDLOG,8eada11c61e2efdc,mail_in,,,<r...@server.home.arpa>,develo...@server.home.arpa,
Test #3 - ATTACHMENT
So it appears that the following steps should be taken when installing
the mimedefang filter for OpenSMTPD:
$ doas pkg_add filter-mimedefang
$ doas pkg_add p5-Net-DNS-1.37
$ doas rcctl enable mimedefang_multiplexor mimedefang
$ doas rcctl order mimedefang_multiplexor mimedefang
$ doas rcctl start mimedefang_multiplexor
$ doas rcctl start mimedefang
This suggests to me that the root cause of the problem is a missing
dependency for the Perl pacakage: Net::DNS ... am I correct ?
- J
Links
[1] See:
https://mimedefang.roaringpenguin.narkive.com/UP7dOGIf/sire-2-44-undefined-subroutine-main-do-main-loop
