Mac OS X 10.0: Mail May Interrupt Log Out

Sometimes the application Mail in Mac OS X interrupts Log Out.
Symptom

An alert box appears with the message:




Figure 1 Mail failed to quit message

This happens if you choose Log Out from the Apple menu with the Mail application still open.


Solution

Quit Mail prior to logging out.

Sometimes Mail takes longer than expected to quit, a known behavior for this release of Mail. It does not indicate an issue. This may be addressed in a future software version.
Published Date: Feb 17, 2012