Q: Mail accesses POP accounts randomly since El Capitan upgrade
I've upgraded to El Capitan (yay). First, the new Mail tried to take all my existing POP accounts and make them IMAP (boo). Everything's back as a POP, but now Mail will only access a couple of them at a time [and never the same couple, or, again randomly, none at all] when going out and getting mail, and then locks the rest out for a seemingly random amount of time; Connection Doctor does the same thing. All the accounts are discrete boxes with the same provider –– but different servers, with different IPs –– and all of them do answer, eventually. The provider's services are not down.
I'm going out Port 995 using SSL and password authentication, disallowing an insecure connection. I've tried flipping it back to Port 110, same results. There also doesn't seem to be anywhere to set a preference for server timeout, if that's the issue. All of this worked absolutely fine *before* the El Capitan update. Is there some rule that Mail now only allows X number of inbound requests? Or is there something odder going on?
This is, in short, maddening. Any help appreciated.
Mac Pro, OS X El Capitan (10.11.3), null
Posted on Feb 12, 2016 10:45 AM