My mail has reset itself to read-only
MacBook Pro 13" OSX Yosemite 10.10.5
My mail has suddenly reset itself to read only.
MacBook Pro (13-inch Late 2011), OS X Yosemite (10.10.5)
How do you expect it to work? Are you saying you can't reply to email? Why would an email not be read only until you want to reply or write a new email? What are you doing when you observe this symptom? Please provide more details.