Started getting this message back from AOL:
The information presently available to AOL indicates this server is generating high volumes of member complaints from AOL's member base. Based on AOL's Unsolicited Bulk E-mail policy at http://www.aol.com/info/bulkemail.html AOL may not accept further e-mail transactions from this server or domain. For more information, please visit http://postmaster.info.aol.com
So, if you only use AOL, you can't receive emails from popex, and if you bounce your popex emails, your popex account might get closed down, sorry. This could apply to anyone who's rejecting email from popex, so please make sure your address is up to date in your details...
What a lovely way to start the week!