How about this setup which I think is clean way to do it.

Content of the config file, say cfg.cfg

%cfg = (To => 'to',
        From => 'from',
        Subject => 'subject',
        Message => "message\nmsg2\n",
        Page_Title => 'MailTo');

%cfg;
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Then you do something like this in the main program.

use strict;
.
.
my $file = 'cfg.cfg';
my %cfg;
my $return = do $file;
unless ($return) {
    die "couldn't parse $file: $@" if $@;
    die "couldn't do $file: $!"    unless defined $return;
    die "couldn't run $file"       unless $return;
}

%cfg =  %{$return};
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And then later in your code use it as

                <td><select name="$cfg{From}" size="1">
                more code...
            </select></td>
            </tr>
            <tr>
                <td>Subject:</td>
                <td><input type="text" name="$cfg{Subject}" size="24">
+</t
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This is easily expanded to have several different configs in the same file.
Ex $cfg{Guest}{To}, $cfg{Admin}{Page_Title}, etc etc