AOL users not receiving registration email.

Hey all,

So I’ve battling with a registration problem for over a week, and I managed to solve it… for everyone except AOL users. Here’s exactly what happened.

Right after installing Simplepress on two sites, people who tried to register suddenly stopped receiving email confirmation/passwords. I spent untold hours on this, and finally stopped the problem by deleting WPSuperCache. (After trying about a gazillion other things.) In the process, I deactivated every plugin and then retested new user registration with each one… so I know for a fact that the problem was not in any other plugin. Getting rid of Simplepress was absolutely not an option, so I was very glad to find this workaround.

The problem is that people STILL cannot register from an AOL address. Gmail and Yahoo are working fine, but not AOL. The registrations DO literally go through, the user is listed AS a user on my site, but they never ever receive their registration email.

I found a lot of various topics where people had had similar issues with AOL and WP registration, but I couldn’t find one exactly like this. Usually, Yahoo addresses didn’t work either, but in this case, no problem there. It’s only AOL. Any ideas would be greatly appreciated!