use Email::Valid;

# . . .

my $spammer;
$spammer = 1
  unless Email::Valid->address($f{'Email'})
    or $f{'Email'} eq '';

[download]

There exists a regex that does what you want, but it is large and complex. Email::Valid uses a small parser.

Update: Seperated my declaration from conditional assignment, was a thinko.

After Compline,
Zaxo

In reply to Re: regexp to only allow for formally valid email addresses by Zaxo
in thread regexp to only allow for formally valid email addresses by fraktalisman

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