Bare domain the mailbox sends from, derived from email_address. Matches the platform default (inkboxmail.com) or the customer's verified custom domain.
filter_mode'whitelist' | 'blacklist' required
agent_identity_idstring uuid nullable
ID of the agent identity that owns this mailbox, or null on tombstones / system mailboxes.
created_atstring date-time required
updated_atstring date-time required
storage_used_bytesinteger
Live storage used by this inbox, in bytes.
storage_limit_bytesinteger nullable
Resolved plan-tiered storage cap in bytes; null when the route did not resolve it (the ORM does not carry the cap).