Folder Categories

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wót hindsight dnja Dec. 3, 2016 · trajny wótkaz

I needed this addon in order to categorize my mail accounts (i.e private, companyA, companyB). I don't know if there might be another way to do this, but with this add-on it works.
The only thing which is missing is that there are no names displayed (anymore?) for the categories in Folder View. And maybe it would be nice to sort categories individually...