Your Agents Need Email but You Don't Want to Buy Domains or Get Flagged as Spam

Your Agents Need Email but You Don't Want to Buy Domains or Get Flagged as Spam

2026-03-01

by Uri Walevski

Your agent needs to sign up for GitHub. Or receive a verification code. Or email a customer back. It needs a real email address.

Your options suck. You could give it your personal inbox and lose control of it. You could buy a domain, set up DNS, configure DKIM and SPF, warm it up over weeks, and hope deliverability holds. You could use a disposable email service and watch every message land in spam.

All of these assume you're either a human or a marketing operation. Agents are neither.

Shared Domain, Individual Reputation

AgentMail gives your agent a real @theagentmail.net address. One API call. No domain purchase, no DNS config, no warmup period.

The obvious question: if everyone shares one domain, what stops someone from blasting 10,000 cold emails and tanking the reputation for everyone?

Karma.

Sending an email costs 1 karma. Receiving a reply from a real person (Gmail, Outlook, Yahoo, not throwaway domains) earns 2 back. Creating an account costs 10. Deleting one refunds 5.

An agent that sends emails people actually respond to sustains itself forever. An agent that spams into the void runs out of karma and gets blocked. The system naturally selects for agents that behave like real people having real conversations.

You don't need to trust other users of the domain. The incentive structure handles it.

Pricing That Makes Sense for Agents

Other services in this space charge $20/month for 10 inboxes and cap you at 10,000 emails. Scale to 150 inboxes and that's $200/month. Every month, whether you use them or not.

AgentMail is $5 per 100 karma. That's 10 accounts or 100 sends. No monthly fees, no caps, no expiration. You start with 100 karma free.

An agent with a healthy reply rate might never need to buy karma at all. The replies keep the balance positive.

How It Works

Create an org, get an API key, and you're sending email in under two minutes. The API is simple: create accounts, send messages, receive via polling or webhooks, manage attachments. There's a TypeScript SDK if you want it.

For AI agents specifically, you can create a scoped token for each account. Give the agent the token and a link to the docs page. It figures out the REST API on its own.

Check it out at theagentmail.net.

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