Hello Folks, I try to send an email using SMTP in asp.net but I got an error as per below.
The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.7.0 Authentication Required.
I got the above error after a Google No Longer Support in Less Security.
I tried many ways to mail send but I could not send the email using SMTP after google was no longer supported it.