> The better way to validate users's EMAIL addresses would be to use the verify
> (VRFY) command already present in the SMTP protocol used to transport Internet
> email. The protocol is pretty simple, and is outlined in RFC 821. It's
probably
> a 50-liner to do the remote validation using sockets, given an email address
as
> an argument.
Yep, I did a version in PHP3 that works a bit better than VRFY because VRFY
is often disabled. Instead I actually try to send email to the user. If the
RCPT To: returns a 250 response the email is valid, if not, then it isn't.
<http://px.sklar.com/code-pretty.html?code_id=71>
Converting this function to java probably wouldn't be hard.
-jon
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