Thunder Mail - Cheap and simple transactional emails API with Amazon SES
Amplemarket - AI-powered sales assistant
MailClark - The Slack bot for external communications
Mixmax - At Mixmax, our mission is to change how the world communicates. We’re an email productivity platform that helps sales, customer success, and recruiting teams do their jobs better.
PigeonBot - Send emails via Slack with the /email command
Persuwise - From endless email follow-ups to instant, genuine meetings.