If you have the anti virus software "avast!" installed on your system it will for some reason block connections from Unibox to the mail server. In order to prevent this first go to System Preferences and select "avast!".

You might get the error message "Account with this email already exists" when you delete an account and want to re-add it to Unibox immediately.

It takes up to a couple of minutes for Unibox to delete an account and to remove all temporary fil...

If Unibox doesn't display all results when searching for message contents, it might be necessary to reindex the messages manually. To do so open the Terminal.app and enter:

mdimport ~/Library/Containers/com.eightloops.Unibox/Data/Library/Ap...