Ballast

Ballast is cold email software designed to keep your spending focused on outreach results rather than mailboxes, seats, or add-ons. You pay for the emails you send, and all features are available on every plan.

Connect unlimited mailboxes across Google Workspace, Microsoft 365, and any custom SMTP host. When you add new mailboxes, they ramp up gradually and warm up from a pool without consuming your monthly email quota. Ballast also runs nightly checks to keep your sending domains in shape.

To protect deliverability, Ballast sends at a human-paced rhythm (with random gaps and sending only during each lead’s working hours). It includes bounce-rate circuit breakers that pause campaigns or mailboxes when bounces climb, helping prevent one bad list or setup from damaging a domain. It also monitors SPF, DKIM, and DMARC health nightly.

Campaign replies are centralized in one Unibox where responses are sorted into categories like Interested, Meeting booked, Out of office, and Not interested. You can build multi-step sequences with step variants, spintax, A/B testing, and variable fallbacks, and preview emails using real lead data before you launch. If you use AI, Ballast includes an MCP server so AI agents can build, preview, launch, and monitor campaigns through tool calls. Plans start from $19/month, based on the number of emails you can send each month.

How does Ballast pricing work?

You’re charged based on emails you send each month. Plans start from $19/month, and all features are included on every plan; the plan mainly determines your monthly email allowance.

Can I connect more than one mailbox?

Yes—every plan supports unlimited mailbox connections. You can connect Google Workspace, Microsoft 365, or any custom SMTP host.

Does mailbox warmup count toward my monthly email quota?

No. Warmup is included on every plan and never uses your monthly email quota, since new mailboxes warm up from a pool.

What deliverability safeguards does Ballast include?

Ballast uses human-paced throttling, bounce-rate circuit breakers that pause when bounces climb, and nightly monitoring for SPF, DKIM, and DMARC health.

Where do replies go and how are they organized?

Replies from all connected mailboxes land in the Unibox. They’re sorted into categories such as Interested, Meeting booked, Out of office, Not interested, and Unsubscribe, with out-of-office pausing the sequence until the return date.

Can an AI agent run campaigns in Ballast?

Yes. Ballast provides an MCP server so AI agents can build, preview, and monitor campaigns via tool calls. Any action that sends or changes live data requires your approval.