Step 1: Create your Instantly.ai account
We recommend signing up for Instantly.ai first so we can configure the mailboxes for you. Use our partner link and save 10% with code LGJ10.
How Instant Orders Work
- Setup happens instantly — fully automated
- Domains purchased & configured automatically
- Mailboxes created and added to your cold email tool
- Warmup enabled automatically
Want more control?
Create a free account on inboxinsiders.io to pick your own domains, configure mailboxes manually, and access advanced monitoring and scaling options.
Automating setup with AI?
Use the Inbox Insiders API & MCP server to provision domains and mailboxes programmatically via Claude, Claude Code, or any MCP-compatible LLM client. Ideal for agencies automating client onboarding.
Frequently Asked Questions
A ready-to-send cold email stack: sending domains registered and configured, mailboxes provisioned with SMTP/IMAP credentials, SPF/DKIM/DMARC records set up, mailboxes connected to your email sequencer, and warmup settings enabled. You skip domain shopping, mailbox provisioning, DNS configuration, sequencer wiring, and warmup tuning.
Planning a larger setup?
Size your infrastructure with the calculator, then verify your records once you're live.