Ok. The code seems to have generated further errors.

use strict;
use warnings;

my $address = 'myemail@whatever.com';
my $subject = "Comments Version: $version  ID: $ID";

system( "mail $address -s '$subject' < blah6.txt" ) == 0
    or die "mail failed:  $?";
[download]

Generates:

Variable "$ID" is not imported at myscript.pl line 137.
Variable "$version" is not imported at myscript.pl line 137.
Possible unintended interpolation of @whatever in string myscript.pl l
+ine 154.
Possible unintended interpolation of @whatever in string at myscript.p
+l line 154.
Global symbol "$ID" requires explicit package name at myscript.pl line
+ 137.
Global symbol "$version" requires explicit package name at myscript.pl
+ line 137.
Global symbol "@whatever" requires explicit package name at myscript.p
+l line 154.
Global symbol "@whatever" requires explicit package name at myscript.p
+l line 154.
Execution of myscript.pl aborted due to compilation errors.
[download]

Any more thoughts? I'm using Perl 5.8.0, if that makes any difference...

Thanks again!