>>>>I don't aggree with you. May be he want to validate this mail address if it correct?
>>>
>>>Does he really need to reply for validation ?
>>
>>Well, yes, if they've sent him an email and they get a response, they will know the e-mail is valid.
>>
>>Kev
>
>Hmm doesn't servers validate it before a reply does ?

That validates that it's a working address, but an actively-used one requires a response, there are loads of registered e-mail addresses that aren't being used out there.

Kev