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E10008 — MaxMailboxesExceeded

Maximum number of mailboxes for this organization reached.
  • HTTP status: 422
  • Type: validation_error
  • Name: MaxMailboxesExceeded

What to do

Delete a mailbox to free a slot, or raise the limit on a higher plan. A deleted inbox.ai address keeps its slot for 30 days (its restore window) before the slot frees; mailboxes on your own domains free their slot immediately.
  • E10xxx — Quotas: every code in this range
  • Errors: the full wire contract, status mapping, and error catalog
  • Error handling: branching on type and code, validation details, and vendor_code