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What is Ballast?
Ballast is a cold email platform built to make outbound simple, affordable, and safer for your domains. You pay only for the emails you send, not for mailboxes, seats, or add-ons. It lets you connect unlimited mailboxes, warm them up for free, send sequences with built-in deliverability guardrails, and manage replies in one inbox. The product includes everything on every plan, from mailboxes and warmup to sequences, Unibox, imports, API, and MCP tools. It also helps protect sender reputation with slow ramp-ups, random sending gaps, bounce-based pauses, and static mail-only IPs. The goal is to keep campaigns running while staying out of spam and keeping costs low.
Key features
- Connect unlimited mailboxes from Google, Microsoft, or any SMTP host.
- Warm up mailboxes for free without using monthly quota.
- Build sequences with variants, variables, and spintax previews.
- Manage all replies in one inbox with helpful sorting.
- Pause campaigns automatically when bounce rates get too high.
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