Though I can't be sure (You're question was a bit garbled), it sounds to me you want something like this:

#!/usr/bin/perl -wT

eval 'exec perl -wT -S $0 ${1+"$@"}'
    if 0; # not running under some shell

require 5;
use strict;
use CGI;
use URI::URL;
use Mail::Mailer;
use vars qw( @errors );

my $subject = "Automated Message From $0";
my $mailtext;

my $forwardurl = '/thankyou.html';

my $query = new CGI;
my @params = $query->param;
my $email = $query->param('email');
my $mailto = $query->param('mailto');

# check email address is valid
checkemail($email) if $email;

# construct the message for whoever's being sent the form
my $param;
my $value;
my @values;
foreach $param(@params) {
  @values = $query->param($param);
  if ($query->param('other_'.$param)) {
    foreach $value (@values) {
      if ($value eq 'other') {
        push (@values, $query->param('other_'.$param));
        last;
      }
    }
  }
  @values = grep { $_ ne 'other' } @values;
  ($value = join(', ', @values)) && ($mailtext .= "\u\L$param\E: $valu
+e\n");
}

if (@errors) {
  $mailtext .= 'IMPORTANT! The following error'. (@errors>1 ? 's were'
+ : ' was') ." encountered during execution:\n". join("\n",@errors). "
+\n\n";
}

sendmail($email, $mailto, $subject, $mailtext);  # send off the mail
print "Location: $forwardurl\n\n";               # forward the user to
+ a 'thank you' page

exit;


sub sendmail {
  my ($from, $to, $subject, $body) = @_;
  
  my $mailer;
  eval {
    $mailer = Mail::Mailer->new('sendmail');
  };
  if ($@) {
    push (@errors, "Couldn't send mail: $@");
    return 0;
  } else {
    $mailer->open({ From     => $from,
                    To       => $to,
                    Subject  => $subject });
    print $mailer $body;
    if (close ($mailer)) {
      return 1;
    } else {
      push (@errors, "Couldn't close mailer: $!");
      return 0;
    }
  }
}


sub checkemail{
  my $addr = shift;
  my $validmail;
  
  return 0 unless eval {
    unless ($validmail = Email::Valid->address( -address => $addr,
                                                -mxcheck => 1 )) {
      push (@errors, "address failed $Email::Valid::Details check.");
      if ($Email::Valid::Details eq 'rfc822') {
        push (@errors, "$addr is unlikely to be a valid email address"
+);
      } elsif ($Email::Valid::Details eq 'mx') {
        (my $domain = $addr) =~ s/^[^\@]+\@//;
        push (@errors, "$domain does not seem to have a mailserver");
      }
      return 0;
    }
  };
  if ($@) {
    push (@errors, "An error was encountered: $@"); 
    return 0;
  }
  
  return 1;
}
[download]

This script will mail all the data in the form to the address given in the form field 'mailto'. If you want the address mailed to to be fixed, simply set $mailto to that address.
Hope this helps ;-)