Actually: Most of the points you raise have been solved. MailGun has (as far as i can tell after a week of usage) a great spam filter and supports IMAP.
To be honest: I wouldn't even consider building the email infrastructure part myself.
To be honest: I wouldn't even consider building the email infrastructure part myself.
Good plan, especially when there's no good reason to do so.
In all honesty, I didn't go over the technical details you provided in any detail; I just got a bit upset reading the number of "I wouldn't pay for that!"-type responses.
The thing is, I've previously seen a lot of people here claim that there's no money in time tracking tools, or any other market when, plainly, these markets do make a large amount of money. I want to emphasize that any pricing advice here should be taken with a pinch of salt. And when it comes to people who would never pay for a given service, discarded entirely ;)
Actually: Most of the points you raise have been solved. MailGun has (as far as i can tell after a week of usage) a great spam filter and supports IMAP.
To be honest: I wouldn't even consider building the email infrastructure part myself.