I’m hearing from lots of folks that they’re seeing some improvement in delivery to AOL accounts.
As everyone can imagine, the AOL situation has been a common thread of discussion on many delivery lists. One person even commented at how fragile the AOL mail server seems. My own thoughts are a little different. The AOL mail system is notoriously complex and integrated. Many of the folks who built it have been laid off or otherwise moved on to other companies. I know there are still smart, competent people riding herd on the AOL mail servers, but I expect they don’t have the resources to do the ongoing maintenance and the fire fighting and all the other tasks that a mailserver handling billions of emails needs.
What this means is that the AOL mail system has been suffering from bit rot for at least 2 years. It is to the original designers’ credit that it’s taken this long before there were major problems like we’ve seen over the last week.

AOL