E10008 — MaxMailboxesExceeded

Your organization has reached its limit on mailboxes.

• HTTP status: 422
• Type: validation_error
• Name: MaxMailboxesExceeded

What to do

List the mailboxes with deleted ones included to see what holds the slots. A deleted inbox.ai address keeps its slot for 30 days (its restore window), so it holds one without appearing in a default listing. Deleting a mailbox on one of your own domains frees its slot immediately; otherwise raise the limit on a higher plan.

Operations that resolve this:

• List mailboxes

Related

• 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