This RE is hosed: 
m/^administrator|accounts|support|postmaster|webmaster|spam-admin|
    |technical|billing|sales|misuse|mail|virus-admin|manager|usenet|ho
+stmaster$/

[download]
You need to group the alternations with parentheses and hack off one of the duplicate bars in the middle of the RE. Here is what you are looking for: 
 
m/^(administrator|accounts|support|postmaster|webmaster|spam-admin|tec
+hnical|billing|sales|misuse|mail|virus-admin|manager|usenet|hostmaste
+r)$/

[download]

$PM = "Perl Monk's";
$MCF = "Most Clueless Friar Abbot Bishop Pontiff";
$nysus = $PM . $MCF;
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In reply to Re: Code review: validation regexes by nysus
in thread Code review: validation regexes by Anonymous Monk

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