How to verify the email address in c sharp.

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Please note I don't want to validate email. Instead I wanna check whether an email address does exists in real or not. There are certain api available but I don't want to use them. Please show the sample code that would be really helpful.

Posted 7-Feb-15 21:23pm

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OriginalGriff · Answer 1 · 2015-02-07T21:35:00

You can't, in practice: all you can do is send an email and see if you get a response from a "live" user. If you do, it works.

If you don't...he could be not looking yet, it could be a "unmonitored" email address, it could be an autodelete email (I have a couple of those to use when shops insist: all mail is automatically deleted when it arrives), it could be a valid email domain with no user registered to the local part.

It depends on the email system on the other end, and how it is configured.
Why? Simple: to prevent spam. If you can detect "valid emails" without a response, spammers can flood it with rubbish...