Here are a couple of simple checks: 
die "Your email address is incorrect.\n";  # Will generate some false 
+negatives.
print "Your email address is correct.\n";  # Will generate some false 
+positives.

[download]
Those checks are simple. They won't be correct, but neither will any "simple" email address validation.

Anyway, could you be bothered to read the FAQ?

Abigail

In reply to Re: Simple e-mail validation by Abigail-II
in thread Simple e-mail validation by Anonymous Monk

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