Mailmark launched 6 months ago as a cold email tool. This relaunch is a rebuild around a different job: running email for every product you ship. Each product's domain gets guided DNS setup and hourly re-checks, unlimited mailboxes, and a shared Gmail-like inbox. Send product update campaigns to your users, or send from code with the REST API and npm SDK. New: recipient verification before every send, bounce protection, and SPF/DKIM/DMARC and blacklist monitoring.

Cold email tool built for founders. Bring your own domains, spin up multiple mailboxes, run campaigns, tell about your product updates to your users and track opens and clicks — all from one dashboard, without stitching together multiple tools.