I have been using the standard Apple Mail client on my Macbook for 3 years without problems. Recently however it failed to display my sent messages unless I closed the app whilst the sent message folder was selected, and then re-open the app. When I re-opened Mail, the sent messages were displayed until I clicked on my inbox, after which, when I returned to the sent messages folder, I found that the sent messages were no longer displayed. Mail then refused to quit unless I used the "force quit" option. This situation persists. Does anyone know why this should occur and how I can fix the problem.
Regards, Tony Xpat.
Regards, Tony Xpat.