There are some email addresses that behave *very* poorly with the validation 
done in EmailValidationUtil.  I think it might be due to the nested quantifiers 
in the complex regexes there.  They literally take hours to finish the 
validation, using 100% CPU.

Is there any way to fix this, and barring that, can an option be added to skip 
validation?

To reproduce:
1. Try to send an email to an address like 
309d4696df38ff12c023600e3bc2bd4b@fakedomain.com
2. Wait for computer to explode

(Using java 1.6.0_31)