Mail on my Mac is "unable to verify account name or password" for my AOL account.
There was an earlier question asked about this same problem back in April (Mail on my Mac is "unable to verify account name or password" for my AOL account. The password is correct, there is no two-step verification, and the account is active. Any ideas how to fix this? Thanks!) and the replies did not provide a successful solution. I have been having the exact same issue almost since Verizon switched all users over to AOL Mail.
Mac Mail is often unable to login to my AOL (former Verizon) mail account, sometimes simply not connecting, other times giving me the "not connected" icon on my Inbox. If I try to send email using AOL. I get the popup asking for my password. I enter the correct password (password has been the smae since I started with Verizon close to 20 years ago) and it is rejected. I have tried setting up the account in Internet Accounts again from scratch, no help. The only thing that seems to break the logjam is to actually log into AOL with Safari, go look at my mail there and then most of the time the logjam breaks and Mail starts downloading the messages. Sometimes, like today, even this does not work. Sometimes after breaking the logjam, the problem occurs later in the same day.
This is driving me insane because transferring all my mail to another account (gmail, hotmail, yahoo, etc.) is major work notifying government agencies, banks, online vendors, etc. but I will have to do it if this situation continues.
MacBook Pro, OS X El Capitan (10.11.6)