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Inboxes are currently in private beta and only available to a limited number of users. The response shape might change before GA.Get early access if you’re interested in testing this feature.Once you have access, upgrade your Resend SDK to use the new methods:
An inbox sends and receives email at an address on one of your domains, such as support@example.com. Without forwarding, the domain must have receiving enabled, with DKIM and SPF verified and the inbound MX record verified or pending. With forwarding set to true, the domain needs only DKIM and SPF verified. Otherwise, the request returns a 422. An address that is already in use returns a 409. A team at the inbox limit of its plan gets a 403.

Body Parameters

string
Internal name for the inbox. Recipients do not see it. Max 64 characters. Defaults to email_address.
boolean
default:"false"
When true, Resend provisions a receiving address so you can receive mail without adding an MX record. Read it from receiving_address with Get Inbox.

Response Fields

string
Always inbox.
string
The ID of the inbox.