sub test {
    my (@names_all, @email_all);
    my @names = qw(Joe mary ann pete amy jerry Joe ann John John );
    my @email = qw(joe@test.com mary@test.com ann@nowhere.com
        pete@here.com amy@ok.com jerry@b.com joe@test.com ann@nowhere.
+com John@test.com John@ok.com);
    my %emails;

    my @names_combined = (@names,@names_all);
    my @emails_combined = (@email,@email_all);
    for my $name ( @names_combined ) {
       push @{$emails{$name}}, shift(@emails_combined);
    }

    return \%emails;

}
[download]

Not tested, but should get you going in the right direction. Maybe read some Perl tutorials or Learning Perl to get a better overall feel for the language.