Show HN: MailMark – Cold email tool where you own your domain and mailboxes

Category: devtools

Tags: email-tool, domain-management, cold-email

Score: 5.0/10 (Innovation: 5, Technical: 4, Documentation: 3, Utility: 6)

MailMark is a cold email tool that lets users manage multiple domains and mailboxes from a single UI, with tracking, bulk campaigns, and an API. It's interesting because it solves a practical pain point for domain-heavy users, though it's a conventional approach to a common need.

Target audience: backend devs, marketers, entrepreneurs

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