N1 1.5.0 was the last version that supported Exchange, and that was via the Nylas APIs. We never did ship Exchange support on Nylas Mail 2.0.x, but there's no

N1 1.5.0 was the last version that supported Exchange, and that was via the Nylas APIs. We never did ship Exchange support on Nylas Mail 2.0.x, but there's no reason someone can't add it now that we've dumped all the code.