Subscriber email function has failed

Hi,

You still having this problem?
I had a similar issue a few months ago, my host changes the there config to only allow SMTP authenticated emails, wordpress mail function is not setup to send SMTP emails however the mail function is pluggable and there are many plugging available to add this functionality.

If you can’t find a plugin you like post your email address and I can send you my solution. It doesn’t have an option page as I did not want extra clutter on my admin panel, you will need to change your settings manually in the script.