Upgraded macOS Tahoe to 26.0.1 over a week ago. Mac is mac mini M4 (2025) with 512 GB. ALL has worked fine until yesterday (Oct 3, 2025) when 4 out of 5 iCloud email accounts refused to load. What do I do to get them back up and running? BTW 2 different iPads and 2 different iPhones and 2 different Apple watches are all fully upgraded and working fine.
Many Thanks,
Bob
Apple TV 4K, tvOS 18
Try a SafeBoot Start up your Mac in safe mode - Apple Support will sort many anomalies
Login and test. Reboot as normal and test. Caches get rebuilt automatically.
The 2iPads, 2 iPhones, and 2 AppleWatches were never affected with this problem; and yes I could log into iCloud accounts on them. The only device that had the problem was the M4 Mac mini; and it went away on its own as outlined above.
I’m having the same issue and some others with messaging since the update. When I click on the exclamation point next to the emails it says for icloud mail: “Connections to the Server P38-imap.mail.me.com on the default ports timed out”
In every case, including my gmails, (I have many) there is a timeout error for the imap.
How do you fix this?
Jonathan Nolan wrote:
Apple - please send out an update to sort this!
Apple doesn't read here in this user-to-user forum for feedback or suggestions. You can, however, let them know your thoughts here:
Brand new MacBook pro with Tahoe 26.1 and DOESN'T let me create email accounts using Exchange, chat with 3 Advisors and Noone know how to fix this issue!! Now I have a 3K new box that doesn't have email!!!!!
YoRcano wrote:
Brand new MacBook pro with Tahoe 26.1 and DOESN'T let me create email accounts using Exchange, chat with 3 Advisors and Noone know how to fix this issue!! Now I have a 3K new box that doesn't have email!!!!!
Tried using a Microsoft mail client, as Exchange is a Microsoft scheme?
My last words on this.
Good luck, all.
Another spellcheck workaround, instead of putting an intentional spelling mistake in:
When you have finished spellchecking and it hangs , return to the document, find an empty line, and add a space and a paragraph return.
When the cursor moves to the new line, it will send.
I fixed it by going third-party. Not to plug an app, but I went with Grammarly. It handles writing and spelling in Mac Mail and everything else. Makes me look smarter, too. I am sure there are other third-party apps, but this is the one I found, and it works. Like most third-party apps, it runs circles around the Apple Engineers. Steve Jobs would be turning over in his grave if he saw how the company has become so MS-ish.
I have exact issue. Multiple yahoo account and even iCloud and gmail don’t work on Tahoe 26.0.1 Mac, but all work great on iPad and iPhone. Have deleted internet accounts and te added several times.
Trying to trouble shoot when you are not sitting in front on the mac that is causing trouble can be just as frustrating as it is for the person sitting in front of the troubled mac.
I've got exactly the same problem. Tried everything. Nothing works. Tomorrow I have a scheduled phone call from the apple support. Let's hope they'll be able to do something about it.
Since you have 2 ipads, 2 iPhones and 2 Watches, could you not log into one of your iCloud accounts on each device?
Being that 26.01 is beta - is there a way to revert back to 26?
Well I guess the best route then is to write the email in another app and copy and paste it into Mail and send it and don't let Mail check it for mistakes.
That deleting and re-setting up email doesn't work. Only the NEVER spellcheck workaround works, in my experience.
Email not working after macOS Tahoe 26.0.1
