Tried that. "/usr/local/share/perl5/Mail" there but still get same error.

It doesn't look like it

melisa:~/CRON$ ./print-INC.pl
/home/jrayner/perl5/lib/perl5/x86_64-linux-thread-multi
/home/jrayner/perl5/lib/perl5
/home/jrayner/perl5/lib/perl5/x86_64-linux-thread-multi
/home/jrayner/perl5/lib/perl5
/home/jrayner/perl5/lib/perl5/x86_64-linux-thread-multi
/home/jrayner/perl5/lib/perl5
/usr/local/share/perl5/Mail
/usr/local/lib64/perl5/5.30
/usr/local/share/perl5/5.30
/usr/lib64/perl5/vendor_perl
/usr/share/perl5/vendor_perl
/usr/lib64/perl5
/usr/share/perl5

##</code><code>##

Can't locate Mail/Mailer.pm in @INC (you may need to install the Mail::Mailer module) (@INC contains: /usr/local/lib64/perl5/5.30 /usr/local/share/perl5/5.30 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5) at /home/jrayner/CRON/email-reminder-2.0.pl line 62.
BEGIN failed--compilation aborted at /home/jrayner/CRON/email-reminder-2.0.pl line 62.