Following is the email conversation with Damien that ended up fixing this issue. Thanks, Damien, for your time and effort!
>> Hi Damien,
>>
>> I ran the command you sent with the following results:
>>
>> [root@proxy2 root]# rpm -Uhv
>>
http://www.pagefault.org/download/rpms/RPMS/i386/perl-MailTools-1.58-1.i386.rpm>> Retrieving
>>
http://www.pagefault.org/download/rpms/RPMS/i386/perl-MailTools-1.58-1.i386.rpm>> Preparing... ###########################################
>> [100%]
>> package perl-MailTools-1.60-0.rh73.dag (which is newer than
>> perl-MailTools-1.58-1) is already installed
>>
>> I then ran the other command with the same results as before:
>>
>> [root@proxy2 root]# perl -e 'use AMAVIS::Extract::Mail'
>> Can't locate Mail/Header.pm in @INC (@INC contains:
>> /usr/lib/perl5/5.6.1/i386-linux /usr/lib/perl5/5.6.1
>> /usr/lib/perl5/site_perl/5.6.1/i386-linux /usr/lib/perl5/site_perl/5.6.1
>> /usr/lib/perl5/site_perl/5.6.0/i386-linux /usr/lib/perl5/site_perl/5.6.0
>> /usr/lib/perl5/site_perl .) at
>> /usr/lib/perl5/site_perl/5.6.1/MIME/Head.pm
>> line 119.
>> BEGIN failed--compilation aborted at
>> /usr/lib/perl5/site_perl/5.6.1/MIME/Head.pm line 119.
>> Compilation failed in require at
>> /usr/lib/perl5/site_perl/5.6.1/MIME/Parser.pm line 147.
>> BEGIN failed--compilation aborted at
>> /usr/lib/perl5/site_perl/5.6.1/MIME/Parser.pm line 147.
>> Compilation failed in require at
>> /usr/lib/perl5/site_perl/5.6.1/AMAVIS/Extract/Mail.pm line 14.
>> BEGIN failed--compilation aborted at
>> /usr/lib/perl5/site_perl/5.6.1/AMAVIS/Extract/Mail.pm line 14.
>> Compilation failed in require at -e line 1.
>> BEGIN failed--compilation aborted at -e line 1.
>>
>>
>> Any ideas?
>
Your problem is that perl-MailTools-1.60-0.rh73.dag uses /usr/lib/perl5/vendor_perl which is not in your include path (@INC).
I've built perl-MailTools-1.60 with the e-smith support INC path:
http://www.pagefault.org/download/rpms/RPMS/i386/perl-MailTools-1.60-1.i386.rpmrpm -Uhv
http://www.pagefault.org/download/rpms/RPMS/i386/perl-MailTools-1.60-1.i386.rpmto install.