MyAgentMail vs AgentMail

AgentMail (agentmail.to) is another email API built for AI agents. On the surface, the two platforms look similar — both offer REST APIs, IMAP/SMTP, custom domains, and real-time events. But there are meaningful differences in pricing, architecture, and feature depth.

Here's a detailed breakdown.

Quick summary

	MyAgentMail	AgentMail
REST API	Yes	Yes
IMAP + SMTP	Yes	Yes
Custom domains	Any TLD, any DNS provider	Yes
Multi-tenancy	Workspaces with scoped keys	Pods with scoped keys
WebSocket	Yes	Yes
Webhooks	Yes	Yes
Threading	Yes	Yes
Drafts	Yes	Yes
MCP server	Yes	Yes
SDKs	TypeScript	TypeScript + Python

Both platforms cover the core feature set. The differences are in pricing, limits, and extras.

Pricing comparison

MyAgentMail

Plan	Price	Inboxes	Emails/mo	Custom domains
Starter	$5/mo	2	6,000	2
Developer	$15/mo	10	20,000	10
Startup	$199/mo	200	150,000	200

All plans include a 7-day free trial.

AgentMail

Plan	Price	Inboxes	Emails/mo	Custom domains
Free	$0/mo	3	3,000 (100/day cap)	0
Developer	$20/mo	10	10,000	10
Startup	$200/mo	150	150,000	150

Price per unit

At the Developer tier:

Metric	MyAgentMail ($15/mo)	AgentMail ($20/mo)
Cost per inbox	$1.50	$2.00
Cost per 1,000 emails	$0.75	$2.00
Custom domains included	10	10

MyAgentMail's Developer plan is 25% cheaper with 2x the email volume (20,000 vs 10,000).

At the Startup tier, both are nearly identical in price ($199 vs $200). MyAgentMail includes 200 inboxes and 200 custom domains vs AgentMail's 150 of each.

Free tier

AgentMail offers a free tier with 3 inboxes and 3,000 emails/mo (capped at 100/day). MyAgentMail does not have a permanent free tier but offers a 7-day free trial on all paid plans.

If you need to prototype without a credit card, AgentMail has an edge here. If you're building something real, the trial period is usually enough to validate.

Feature comparison

Inbox provisioning

Both platforms let you create inboxes programmatically via API. Both assign real email addresses that can send and receive.

Custom domains

Both support custom domains with automated DKIM, SPF, and DMARC configuration. MyAgentMail explicitly supports any TLD and any DNS provider.

Multi-tenancy

MyAgentMail uses workspaces. Each workspace gets isolated inboxes, API keys, and custom domains. Designed for SaaS platforms.

AgentMail uses pods. Similar concept — data isolation across tenants with scoped API keys.

Both approaches solve the same problem. The implementation is comparable.

Threading and drafts

Both platforms support email threading and a full drafts API for human-in-the-loop workflows.

Real-time events

Both offer WebSocket connections for live inbox events and webhooks for async notifications.

AgentMail documents specific webhook event types: message.received, message.sent, message.delivered, message.bounced, message.complained, message.rejected, and domain verification events.

Bounce handling

MyAgentMail has built-in bounce rate monitoring with automatic agent pausing above thresholds (2% bounce rate, 0.1% complaint rate), disposable domain filtering, and account-level suppression lists.

AgentMail documents bounce detection and diagnostics, plus webhook events for bounces and complaints. They also offer domain warming guidance.

Deliverability

MyAgentMail includes MX validation before sending, verified-recipient enforcement, and pre-send guardrails to protect sending reputation.

AgentMail offers dedicated IPs from the Startup tier and automatic spam/virus scanning on inbound email.

SDKs and integrations

MyAgentMail ships a CLI (myagentmail-cli — Stripe-style browser pairing for first-run auth, plus mcp install to auto-wire every MCP host on the machine in one command), a TypeScript SDK, and an MCP server. Three on-ramps so the right interface fits the runtime: terminal-based agents and CI scripts use the CLI, MCP-host agents (Claude Desktop, Cursor, Windsurf, Cline) use the server, code-writing agents import the SDK.

AgentMail has TypeScript and Python SDKs, plus integrations with Google ADK, OpenClaw, LiveKit Agents, Replit, and a CLI tool. If you're building in Python, AgentMail has a native SDK.

Security and compliance

AgentMail advertises SOC 2 Type I/II compliance from the Startup tier and offers EU cloud deployment and SSO (OIDC/SAML) at the Enterprise level.

MyAgentMail does not currently advertise SOC 2 certification.

Access control

AgentMail offers fine-grained API key permissions restricting access to specific resources and operations, plus allowlists/blocklists for sender and recipient domains.

MyAgentMail uses three scoped key types (sa_ for tenant management, tk_ for inbox management, ak_ for message operations) providing role-based access out of the box.

Where MyAgentMail wins

• Lower price at the Developer tier ($15 vs $20) with 2x email volume (20,000 vs 10,000)
• More inboxes and domains at the Startup tier (200 vs 150)
• Built-in abuse prevention with automatic pause on high bounce/complaint rates
• Simpler key model with purpose-scoped keys (sa_, tk_, ak_)

Where AgentMail wins

• Free tier with no credit card required
• Python SDK in addition to TypeScript
• More integrations (Google ADK, LiveKit, Replit, CLI)
• SOC 2 compliance for enterprise buyers
• Dedicated IPs from the Startup tier

Summary

These two platforms are the closest competitors in the "email for AI agents" space. The core feature set is nearly identical — REST API, IMAP/SMTP, custom domains, multi-tenancy, WebSocket, webhooks, threading, and drafts.

The decision often comes down to:

• Budget-conscious at scale? MyAgentMail is cheaper at Developer and Startup tiers with more generous limits.
• Need a free tier to prototype? AgentMail.
• Building in Python? AgentMail has a native SDK.
• Want built-in deliverability guardrails? MyAgentMail's abuse prevention is more opinionated out of the box.

Both are solid choices. Try both and see which API experience you prefer.

Get started with MyAgentMail — 7-day free trial on all plans.