The normal way to get data from HTML forms is to use the standard CGI module.

use CGI 'param'; # use the CGI module, and import the function named "
+param"

$email_to = param('extra_emails'); # this assumes that your text input
+ is called "extra_emails"
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For simplicity, you could use the "param" method for your checkboxes too. Don't do all those ifs though. Use a hash, it's simpler:

my %checkboxes = (
ChkBoxName1 => 'EmailGroup1@Domain.com',
ChkBoxName2 => 'EmailGroup2@Domain.com',
);
foreach my $checkbox_name (keys %checkboxes) {
  $email_to .= "$checkboxes{$checkbox_name}, " if param($checkbox_name
+); # if the checkbox was ticked, the param call returns true, and $em
+ail_to gets the email address added.
}
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Now I've given you some useful code. That was nice of me, wasn't it? In return, could you do me a favour? Follow the previous poster's advice. Go read Ovid's course on CGI and the other links he sent you. Learn what you are doing. It will save you time and heartache, and it will make your job more interesting and creative.

andramoiennepemousapolutropon