I don't know, I've been using third-party clients forever. I'd say that probably Canary beats it handily in dealing with encryption, but I don't use it and mayb

I don't know, I've been using third-party clients forever. I'd say that probably Canary beats it handily in dealing with encryption, but I don't use it and maybe mail.app has caught up. I went from Sparrow -> Airmail -> Spark + Canary, but I'd rather ditch Spark because it doesn't get some calendar integration right and often gets my Google account suspended, but Canary doesn't do delayed emails.