Mail app won't open on iMac running macOS Tahoe 26.0.1
mail app can't open !!! , I have to force end and reopen every time.
iMac M4, 2024 , Tahoe 26.0.1
[Re-Titled by Moderator]
Original Title: mail app won't open
iMac 24″, macOS 26.0
Question marked as
You should 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.