 | | | Email users | Email users 2004-02-06 - By Rodolfo J. Paiz
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At 10:44 2/6/2004, you wrote:
>In some cases, you can ask the receiving MTA if the user is valid and it
>may tell you. In many cases, however, there 's no way to know.
And because confirming the existence of valid e-mail addresses tends to
increase vulnerability to attacks and spam, more and more email servers are
taking the prudent step of disabling this functionality. In the future, I
would expect it to be impossible to ask whether an address is valid and get
an answer.
--
Rodolfo J. Paiz
rpaiz@(protected)
http://www.simpaticus.com
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