backup ist vom selben osx el capitan nur nochmal neu installiert
.../Preferences/com.apple.MailMigratorService.plist (file)
.../SyncedPreferences/com.apple.mail-com.apple.mail.vipsenders.plist (file)
.../SyncedPreferences/com.apple.mail.plist (file)
.../SyncedPreferences/com.apple.mail-com.apple.mail.vipsenders.plist (file)
.../SyncedPreferences/com.apple.mail.plist (file)