One error I can spot is
2005-12-13 21:56:36.067209500 eval Can't locate File/MMagic.pm in @INC (@INC contains: lib /usr/lib/perl5/5.8.5/i386-linux-thread-multi
Seems like you need to install the Perl module File::MMagic.
I have confirmed that perl-File-MMagic-1.22-1 is installed on the system. However, I am getting the following log entries in qpsmtpd/current. It seems to generate the messages every few seconds.
2005-12-14 13:03:50.044044500 12064 trying to get config for plugins
2005-12-14 13:03:50.045384500 12064 loading plugins from /usr/share/qpsmtpd/plugins
2005-12-14 13:03:50.052725500 12064 Loading auth/auth_cvm_unix_local cvm_socket /var/lib/cvm/cvm-unix-local.socket enable_smtp no enable_ssmtp no
2005-12-14 13:03:50.057449500 12064 Loading check_earlytalker
2005-12-14 13:03:50.058212500 12064 check_earlytalker hooking connect
2005-12-14 13:03:50.060586500 12064 Loading count_unrecognized_commands 4
2005-12-14 13:03:50.061246500 12064 count_unrecognized_commands hooking unrecognized_command
2005-12-14 13:03:50.063678500 12064 Loading check_relay
2005-12-14 13:03:50.064294500 12064 check_relay hooking connect
2005-12-14 13:03:50.066758500 12064 Loading check_norelay
2005-12-14 13:03:50.067365500 12064 check_norelay hooking connect
2005-12-14 13:03:50.074116500 12064 Loading require_resolvable_fromhost
2005-12-14 13:03:50.074666500 12064 require_resolvable_fromhost hooking mail
2005-12-14 13:03:50.199123500 12064 Loading check_basicheaders
2005-12-14 13:03:50.199656500 12064 check_basicheaders hooking data_post
2005-12-14 13:03:50.202595500 12064 Loading check_badmailfrom
2005-12-14 13:03:50.203112500 12064 check_badmailfrom hooking rcpt
2005-12-14 13:03:50.203448500 12064 check_badmailfrom hooking mail
2005-12-14 13:03:50.205847500 12064 Loading check_badrcptto_patterns
2005-12-14 13:03:50.206342500 12064 check_badrcptto_patterns hooking rcpt
2005-12-14 13:03:50.208883500 12064 Loading check_badrcptto
2005-12-14 13:03:50.209371500 12064 check_badrcptto hooking rcpt
2005-12-14 13:03:50.211827500 12064 Loading check_spamhelo
2005-12-14 13:03:50.212356500 12064 check_spamhelo hooking ehlo
2005-12-14 13:03:50.212708500 12064 check_spamhelo hooking helo
2005-12-14 13:03:50.216394500 12064 Loading check_goodrcptto extn -
2005-12-14 13:03:50.217134500 12064 check_goodrcptto hooking rcpt
2005-12-14 13:03:50.219666500 12064 Loading rcpt_ok
2005-12-14 13:03:50.220179500 12064 rcpt_ok hooking rcpt
2005-12-14 13:03:50.503621500 eval Can't locate File/MMagic.pm in @INC (@INC contains: lib /usr/lib/perl5/5.8.5/i386-linux-thread-multi /usr/lib/perl5/5.8.5 /usr/lib/perl5/site_perl/5.8.5/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.4/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.3/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.2/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.1/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.0/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.5 /usr/lib/perl5/site_perl/5.8.4 /usr/lib/perl5/site_perl/5.8.3 /usr/lib/perl5/site_perl/5.8.2 /usr/lib/perl5/site_perl/5.8.1 /usr/lib/perl5/site_perl/5.8.0 /usr/lib/perl5/site_perl /usr/lib/perl5/vendor_perl/5.8.5/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.4/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.3/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.2/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.1/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.5 /usr/lib/perl5/vendor_perl/5.8.4 /usr/lib/perl5/vendor_perl/5.8.3 /usr/lib/perl5/vendor_perl/5.8.2 /usr/lib/perl5/vendor_perl/5.8.1 /usr/lib/perl5/vendor_perl/5.8.0 /usr/lib/perl5/vendor_perl) at /usr/share/qpsmtpd/plugins/tnef2mime line 27, <DATA> line 2.
2005-12-14 13:03:50.503725500 BEGIN failed--compilation aborted at /usr/share/qpsmtpd/plugins/tnef2mime line 27, <DATA> line 2.