I am getting this error message 503 5.7.0 encryption too weak 0 less than 39 when i tried sending email to my school friends using authsmtp.psu.edu alongside username and password. What can i do for it to send successful?
According to the PSU Help Desk the problem occurred with recent Windows update. They said they are working on the issue. In the meantime you can use Webmail as a workaround.