Mailscale is an autonomous agentic platform that automates high-volume B2B cold email prospecting. It runs prospecting work for you while keeping you in full control of your outreach strategy.
Stop stacking subscriptions. Call every data provider - emails, phones, enrichment, intent - from Claude Code, billed by credits, on a single API key.
Free to start. No credit card required.
plus 40+ data providers in one Unified API accessible from your coding agent
Mailscale is recommended for B2B companies that use high-volume cold email to find new business. It suits teams that want prospecting automated by an agentic platform but still want full control over their outreach strategy.
Mailscale offers cold email inboxes starting at just $1 per month, saving up to 80% compared to traditional providers. You can create 50+ inboxes in under 60 seconds with guaranteed 95-100% deliverability and full integration with popular email sending tools. Domains cost $10-$15 per year each, and you can upgrade anytime with no hidden fees or limits on the number of inboxes.
Don't want a Mailscale subscription?
Get Mailscale and your whole GTM stack from one API key with ColdIQ.
With Mailscale, simply pick your plan, add or buy domains, fill out a form with your desired email usernames, and instantly receive a CSV of ready-to-use email accounts to import into your email sending tool. This quick process takes just 1-2 minutes and requires minimal setup, making it mostly ready to use out of the box.
Mailscale
