Ask HN: Transactional and Marketing email service with simple pricing?

I am having a really hard time finding an all-in-one email service that does the following things and was wondering if you guys could help:

1) Supports transactional emails via smtp or an API. 2) Newsletter creation tool for marketing based emails. 3) Simple pricing (like the way mailgun does it - I want it based on total emails sent, period).

I can't find a single service that does all three of these. Does any such service even exist? The max amount of emails I'll send in a month is 350,000 and the least is around 70,000.