Hi all,

  I have been running my site for over 2 years now with no problems. Then all of a sudden my hosting company WH4L tell me my site is generating a lot of rejected emails and causing thier mail servers to be blacklisted. I have found it that it looks liek YAF forums are causing this. From what I can see it's the email authentification that is the problem.

So I logged in as host and checked my email settings on the site and they were blank. I reentered them and hit the test button but got the following error:

There has been an error trying to send the test email. The error is:
Failure sending mail. Unable to read data from the transport connection: net_io_connectionclosed.

Does anyone know what this means???