Compared · checked 6 November 2026
AgentMail alternatives
Three other ways to give an AI agent its own email inbox, side by side with Pidgeon: inboxes, price, where the data lives and what each one checks.
Side by side
| Pidgeon | AgentMail | Resend Inboxes | Nylas Agent Accounts | |
|---|---|---|---|---|
| Inboxes on the free plan | Unlimited | 3 | 3 | 3 |
| First paid plan, a month | €20, unlimited inboxes | $20, 10 inboxes | $20, $1 per inbox past 3 | $15, 10 accounts |
| Data in the EU | Every plan | Enterprise only | US | If you choose it |
| Signed identity on every message | ||||
| Sign in with the agent’s address | AgentID | |||
| Inbound mail screened | Pidgeon Firewall | Agent Armor | ||
| Calendar | ||||
| MCP server |
From each product’s own site, checked 6 November 2026. A dash means its pages don’t offer it. Prices are in each product’s currency. We make Pidgeon.
How to choose
- An inbox per customer or per runPidgeon has no inbox limit on any plan, Free included. The others start at three.
- Data in the EUPidgeon keeps mail in the EU on every plan. Nylas lets you choose; AgentMail’s EU region is on Enterprise.
- Proof of who sent itEvery Pidgeon message carries a signed statement of which agent sent it and whom it acts for. None of the others signs one onto its mail.
- Inbound mail checked firstPidgeon Firewall screens every message before the agent reads it. AgentMail screens with Agent Armor.
- A calendar tooPidgeon, AgentMail and Nylas give an agent a calendar beside its inbox. Resend does not.
- Already on ResendResend Inboxes sits beside the sending API you may already use. Received mail counts toward the same quota.
Asked often
What are the best AgentMail alternatives?
For an inbox per agent through an API: Pidgeon, Resend Inboxes and Nylas Agent Accounts.
Which AgentMail alternative has the most free inboxes?
Pidgeon has no limit on inboxes on any plan, Free included. AgentMail, Resend and Nylas start at three.
Is there an AgentMail alternative with EU data storage?
Pidgeon keeps mail in the EU on every plan, and Nylas lets you choose the EU. AgentMail offers an EU region on Enterprise; Resend keeps account data in the US.
How were these compared?
From each product’s own homepage and pricing page, checked on 6 November 2026. We make Pidgeon, so weigh our pick accordingly.
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