Error · 404

mailbox_not_found

Mailbox not found

What happened

No mailbox matches that address on the resolved account.

What to do

Call GET /email/accounts to see the mailboxes that exist.

The response body carries a recovery object with the same guidance in machine-readable form: recovery.action names the call to make next, and recovery.hint is one sentence a model can act on. Not every code carries one — a 401, for instance, has nothing to recover to but a valid token.

not_found — Not found
service_not_found — Service not found
invoice_not_found — Invoice not found
record_not_found — DNS record not found
database_not_found — Database not found
job_not_found — Job not found
pending_action_not_found — Pending action not found

Back to the full error reference

404 application/problem+json

{9 keys}

:"https://api.inleed.com/errors/mailbox_not_found",

:"Mailbox not found",

:404,

:"No mailbox matches that address on the resolved account.",

:"mailbox_not_found",

:"/api/v1/…",

:"req_01hxa3b4c5d6e7f8g9h0j1k2m3",

:"2026-08-29T12:34:56.000Z",

:{2 keys}

:"…",

:"Call GET /email/accounts to see the mailboxes that exist."

}

Click a key to copy its jq path.

Handling it

// Branch on code, never on title or detail — those are written for
// humans and may change wording at any time.

if (problem.code === 'mailbox_not_found') {
  // Call GET /email/accounts to see the mailboxes that exist.
}

What happened

What to do

Other 404 responses