Isn't this the SMTP message?
There are a lot of open discussions about why SMTP fails. To check mail, all we need is POP3 and not SMTP.
And since most web pages or sites do not expose a SMTP service, again, that sounds proper.
Wish I was there to check the work. Your ISP/host needs to work with you. I've heard folk write Windows 8 has POP/SMTP issues but on the first handful of machines with 8, nothing gave us any trouble with email.