How to check if an email address exists?

Question

Is there any way to find out if an email address exists in C #?

eg. I have an email address, for example [e-mail] or [e-mail]. How can I do validation?

Answer 1

The Internet protocol and SMTP mail transfer were once invented. It was in the good old days, when everyone was nice and friendly, so the team for checking email addresses - the VRFY team - was included in the SMTP protocol.

However, the darkness got on the Internet and brought spammers, worms and other evil, so the system administrators of the Internet mail servers protected what was good by disabling the VRFY command.

So the short answer is: No.

Answer 2

The most obvious way is to send an email to the email address and ask the recipient to reply or click the link.

Answer 3

: . , ( , ), Hotmail/Gmail . , .

Answer 4

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Answer 5

If for any reason, for example, during registration with confirmation, someone will respond when sending.

Why do you want to do this?