Compare — Agent Inboxes
gent.mx vs Agent & Programmatic Inboxes
Agent inbox primitives vs inboxes with controls around the work.
A new class of services has emerged offering programmable inboxes for AI agents. AgentMail and LobsterMail cover important inbox primitives: send, receive, threads, webhooks, custom domains, and agent integrations. gent.mx is positioned around the business controls those inboxes eventually need: approvals, audit, workflows, contacts, workspace limits, and delegated-work controls.
AgentMail Free / $20+ / mo · Lobstermail Free / $9+ / mo
Feature comparison
| gent.mx | AgentMail | Lobstermail | |
|---|---|---|---|
| Price | From $5 / inbox / mo | Free / $20+ / mo | Free / $9+ / mo |
| Send & receive mail | Yes | Yes | Yes |
| Inbox API depth | Full inbox + ops | Full inbox API | SDK / REST inbox API |
| Threads, labels, lists | Yes | Yes | Threads + search |
| Custom domains | 1 / 3 / 25 | 10 / 150 / Custom | 3 / 25+ |
| Real-time events | Webhooks | Webhooks + WebSockets | Webhooks |
| Workflow rules | Yes — server-side | Agent-built patterns | Agent-built patterns |
| Email sequences | Yes | Not documented | Not documented |
| AI enrichment | Built in | Examples / agent-built | Prompt-injection scan |
| Contacts & CRM API | Yes | Lists, not CRM | Not documented |
| Approval queue / human-in-the-loop | Yes | Draft review pattern | Not documented |
| Scoped tokens | Yes | Yes | API tokens |
| Audit log | Yes — 90 days+ | Events / metrics | Not documented |
| Data residency | Tenant region controls | EU Cloud (Enterprise) | Not documented |
| Plan-tiered capabilities | Yes | Free / Developer / Startup / Enterprise | Free / Builder / Scale |
When gent.mx is the right choice
- AgentMail and LobsterMail are credible agent-inbox tools. gent.mx is the better fit when delegated email work needs controls, approvals, contacts, workflow state, and audit around the inbox.
- For a prototype, inbox primitives may be enough. For a business process, the buyer eventually asks who can approve, audit, limit, retrieve, and explain what the agent did.
- For multi-client operators, see the agency client inboxes guide.
- For approval-gated agent work, see the human-in-the-loop email agent guide.
- For routing inbound mail into the right agent or workflow path, see email routing for AI agents.
- Gent fits teams that need rules, approvals, retention, scoped authority, and workspace-level limits around the inbox.
- Sequences matter when the buyer wants agent-driven follow-up cadences, not only message primitives and event callbacks.
- Gent fits best when email becomes operational work — support, intake, vendors, approvals, and recurring follow-up — and the inbox needs a durable business record.
Related guides
When AgentMail or LobsterMail might be enough
If you're prototyping or mainly need agent-address provisioning plus API access to messages, a focused agent-inbox tool may get you moving faster.
- You need a quick agent inbox for signups, verification emails, or a proof-of-concept.
- Your app already owns workflow, governance, approvals, and CRM state, and email is only one tool call inside that system.
- You specifically want AgentMail's ecosystem integrations or LobsterMail's agent-first SDK/MCP path, and you do not need Gent's broader workflow controls yet.