Postbox Slow to Recover or Respond from Indexing
If Postbox is slow to recover or respond from indexing, please try the following:
1) On macOS, disable App Nap by right-clicking the Postbox app icon, select Get Info from the popup menu, and disable App Nap:
2) Go to the Help menu and select Trouble Shooting..., then select these options:
__ Safe Mode
_X_ Permanently Disable all Add-ons
__ Reset User Interface
__ Reset Caches and Search Index
_X_ Reset IMAP mail databases and Search Indexes
__ Open Profile Manager on Restart
__ Create Protocol Log File
Then restart Postbox.
If problems persists, then please submit a Technical Support Request.