Ask HN: Best email messaging drip marketing tool

[b20000]

I'm wondering what tools work well for selling services via email, that allow you to message prospects and then automatically follow-up until their either schedule a meeting or unsubscribe from messages? Something that can be used to send normal plain text messages and where it looks like the message comes from a person but it's being automated. Bonus points if there is tracking included.

[NCaffer]

Try Mailshake it sends personalized emails, schedules automatic follow-ups, and tracks opens and replies.