Emails not sending out; stuck in my Outbox. Tried everything already.
New M1 MacBook Pro, and ever since a couple of updates back, I haven't been able to send emails out of Mac MAil from ANY of my email accounts (Gmail, iCloud, my own personal hosted domain through Media Temple, etc.) even though I am connected to the internet through a blinding fast connection, no firewalls, email servers all working, etc. I wind up having to respond to emails from my iPhone even though it's using the same exact internet connection, same email servers, etc... except this time, the email I'm trying to respond to is not showing up on my iPhone, which has never happened before! It's maddening!
Any help is greatly appreciated, though last time I asked for help, I just got the standard stock copy&paste obvious answers that did fix my issue at all, so I'm not holding my breath I guess...
(sorry for my frustration, but I've been an Apple user since the Apple II, and I've run tech support departments for years, and lately, it's all changed for the worse! More issues than ever, less support than ever...)
MacBook Pro 13″, macOS 12.6