Method Verify mailkit

Question

How to run Verify the existence of a mailbox address.?

http://www.mimekit.net/docs/html/M_MailKit_Net_Smtp_SmtpClient_Verify.htm

using (var client = new SmtpClient())
    {
        
        client.Connect("smtp.mail.ru", 465, true);

        client.Authenticate(name, pass);

        var d = client.Verify(email);

       
    }

Error MailKit.Net.Smtp.SmtpCommandException: "unrecognized command"

Does this answer your question? [How to check if an email address exists without sending an email?](https://stackoverflow.com/questions/565504/how-to-check-if-an-email-address-exists-without-sending-an-email) — ojonasplima, Dec 13 '21 at 22:11

score 1 · Accepted Answer · answered Dec 13 '21 at 22:04

1

Most SMTP servers do not support the VRFY command anymore. Your server doesn't support it which is why you are getting an error.

answered Dec 13 '21 at 22:04

jstedfast

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score 0 · Answer 2 · answered Dec 13 '21 at 22:10

Possible a duplicate. You can read this question, it's in PHP but all the concepts are the same for your situation.

As jstedfast said, that command isn't supported anymore and to sum up your reading: There is not a reliable way to verify that anymore because of spams.

Method Verify mailkit

2 Answers2