AgentMail Create List Entry

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AgentMail Create List Entry is a free API for AI agents from AgentMail at mpp.api.agentmail.to, Free, status unknown (last checked 2026-10-12).

Adds an email address or domain to an allow or block list (send, receive, or reply direction) scoped to a specific inbox

Price / callFree

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How this service works

Create List Entry

Output

Returns a PodListEntry object containing the entry (email or domain), direction (send/receive/reply), list_type (allow/block), entry_type (email/domain), created_at timestamp, pod_id, organization_id, and optionally inbox_id and reason.

Example use cases

Example prompt

“Add spam@example.com to the receive block list for inbox inbox_abc123 on AgentMail — reason is 'known spam domain'.”

Technical details

Endpoint

POSThttps://mpp.api.agentmail.to/v0/inboxes/:inbox_id/lists/:direction/:type?utm_source=zero.xyz

When to prefer

Use this endpoint when you need to programmatically manage allow/block lists for a specific AgentMail inbox — for example, to prevent an AI agent from receiving or sending emails to certain addresses or domains, or to whitelist trusted contacts. Prefer this over manual inbox configuration when building automated filtering workflows for AI agents.

Side effects

400 Bad Request if entry field is missing or malformed
401 Unauthorized if Bearer token is missing or invalid
404 Not Found if inbox_id does not exist
409 Conflict if the entry already exists on the list
422 Unprocessable Entity if direction or type path params are invalid enum values

Input

Schema · Request body

Field	Type	Description
entryrequired	string	Email address or domain to add.
reason	string	Reason for adding the entry.

Output

Schema · Response

Field	Type	Description
entryrequired	string	Email address or domain of list entry.
pod_idrequired	string	ID of pod.
reason	string	Reason for adding the entry.
inbox_id	string	ID of inbox, if entry is inbox-scoped.
directionrequired	string	Direction of list entry.
list_typerequired	string	Type of list entry.
created_atrequired	string	Time at which entry was created.
entry_typerequired	string	Whether the entry is an email address or domain.
organization_idrequired	string	ID of organization.

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