on 27-05-2020 03:34 PM
AoL Mail is not a TalkTalk service.
AoL Mail is managed by Oath / Verizon.
Aol Help does list some of the email errors. There is currently a banner message "We are currently experiencing higher than normal call volume and wait times due to a system issue which might be impacting your ability to login to one of AOL’s services. We apologize for this inconvenience and have technicians working hard to resolve the matter. Please try again later."
I've just tested the ability to sign in and send a mail message from AoL Mail to TalkTalk Mail and that worked just fine.