Jack thinks what many of us think:
Oh, Lord, how I do hate email. Honestly, how is email not the scourge of the Devil, inflicted upon humanity to cause is grief, disarray, disappointment, fatigue, and sadness?
Spark has some features not found in Mail, but more importantly, Spark does not have most of the features found in Mail. Remember: less is more, small is beautiful… All of this inbred ability to help you chew through messages to reach Inbox Zero comes at a price.