Dashboard and plans

Why do available domains change?

System domains change with availability and operational policy. Use the current dashboard or API list when creating a mailbox.

What is the difference between favorites and history?

Favorites keep frequently used mailboxes handy; history reviews previous activity. Neither is a permanent archive.

What should I do when quota runs out?

Check Usage and Billing, wait for the next billing period, or upgrade. Automated clients should record the error and stop unnecessary retries.