On Wed, 2007-03-21 at 11:49 -0600, Daniel wrote:
> wouldn't it be easier to check to see if the suffix matches an mx
> record or something?

There are such things as invalid characters in the first part of the
e-mail address.  So if you only check the domain, then you'll get a lot
of false-positives and subsequently a lot of bounces to your mail
server.

Further it is possible to send mail to an address for which there is no
MX record.  For example, [EMAIL PROTECTED] works just fine,
even though there is no domain "myserver.byu.edu" and hence no MX
record.  As long as the "myserver.byu.edu" resolves to something, the
mail can still flow.

Michael


> 
> -Daniel
> 



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