how to resolve smtp error : sending message?

Question

Below is my code using smtp for sending mail.

MailMessage mm = new MailMessage("[email protected]", "[email protected]");
mm.Subject = "test";
mm.Body = "hi";
SmtpClient smtp = new SmtpClient("smtp.gmail.com",587);
smtp.Credentials = new NetworkCredential { UserName = "[email protected]", Password = "" };
smtp.EnableSsl = true;
smtp.Send(mm);

when am trying to execute this code i got the below error,

please help me to resolve this error..

Thanks in Advance,

Below my code, MailMessage mm = new MailMessage("[email protected]", "[email protected]"); mm.Subject = "test"; mm.Body = "hi"; SmtpClient smtp = new SmtpClient("smtp.gmail.com",587); smtp.Credentials = new NetworkCredential { UserName = "[email protected]", Password = "" }; smtp.EnableSsl = true; smtp.Send(mm); — S. Durgadevi, May 16 '21 at 05:14

Joest · Answer 1 · 2021-05-17T14:52:13.087

1

Try the following:

Check if the production server is blocked from making a connection: https://myaccount.google.com/device-activity
Check if 2-Step verification is enabled, here: https://myaccount.google.com/security If it is not, and you don't want to/need to enable it, you need to allow the application 'less secure' access here: https://myaccount.google.com/lesssecureapps
If you do want 2-Step verification, you have to generate a special app password and use that in the credentials. You can create this app password when you switch 2-Step verification on.

edited May 17 '21 at 14:52

answered May 17 '21 at 12:07

Joest

158
6

Its working perfectly!! Thank you so much.. – S. Durgadevi May 17 '21 at 19:38

how to resolve smtp error : sending message?

1 Answers1