Warmerly

Warmerly warms up Google, Microsoft and SMTP mailboxes on a gradual ramp so cold email reaches the inbox, then lets you run multi-step campaigns with schedules and a new-mailbox volume ramp from the same workspace. Each plan covers a set number of mailboxes with no per-inbox fee, and agencies can keep each client in a separate workspace. It also includes SPF, DKIM and DMARC monitoring, blocklist checks and inbox placement tests, a unified inbox, LinkedIn outreach, AI lead discovery and personalisation, hosted mailboxes from $2.99/month, a transactional email API, and an MCP server so Claude, ChatGPT and Cursor can work with your outreach. Free plan; paid plans from $19/month.