Hello!

For package maintainers:

For properly working, in system must be installed next packages:

file
perl-Socket6

in other case you can see next:

Apr 3 13:00:28 pingwinlinux amavis[9611]: (09611-01) (!)_DIE: Can't locate Socket6.pm in @INC (@INC contains: /opt/zimbra/zimbramon/lib/x86_64-linux-thread-multi /opt/zimbra/zimbramon/lib/i386-linux-thread-multi /opt/zimbra/zimbramon/lib /opt/zimbra/zimbramon/lib/i386-linux-thread-multi /opt/zimbra/zimbramon/lib/i486-linux-gnu-thread-multi /opt/zimbra/zimbramon/lib/i586-linux-thread-multi /opt/zimbra/zimbramon/lib/x86_64-linux-gnu-thread-multi /opt/zimbra/zimbramon/lib/darwin-thread-multi-2level /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.7/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.6/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.5/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.8 /usr/lib/perl5/site_perl/5.8.7 /usr/lib/perl5/site_perl/5.8.6 /usr/lib/perl5/site_perl/5.8.5 /usr/lib/perl5/site_perl /usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.7/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.6/i3...


and

relay=127.0.0.1[127.0.0.1]:10024, delay=0.74, delays=0.66/0/0/0.08, dsn=4.5.0, status=deferred (host 127.0.0.1[127.0.0.1] said: 451 4.5.0 Error in processing, id=15983-02, parts_decode_ext FAILED: Unix utility file(1) not available, but is needed at (eval 85) line 113, line 63. (in reply to end of DATA command))