Mail.app: a sealed resource is missing or invalid
I recently got a warning message about the code signing of my Mail application. I went to Terminal, ran codesign and got the following:
Mail.app: a sealed resource is missing or invalid
I am concerned that the files might have been interfered with.
Can anyone advise on steps to resolve this?
MacBook (Retina, 12-inch, Early 2016), OS X El Capitan (10.11.5), null
