Which recipe?

Can anyone tell me which of these I ought to be using?

Received.*\[[0-9\.]*([03-9][0-9][0-9]|2[6-9][0-9]|25[6-9])
Received:.*\[[0-9\.]*([03-9][0-9][0-9]|2[6-9][0-9]|25[6-9])

Thanks for the help,

        Brent

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Brent Sims      http://unionavenue.com      brent(_at_)rmi(_dot_)net
       "Every dogma has its day" - Israel Zangwill        
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