1. Mailboxes

Sending rules and mailbox health

Workspace sending rules

Administrators set these in Workspace settings → Sending rules:

Rule

Default

What it does

Daily limit per member

50

The most emails each member sends per day

Pause between sends

45 seconds

Spaces emails out like a person sending them

Verify addresses before sending

On

Skips undeliverable addresses and holds risky ones for review

Check for replies

Every 10 minutes

How often replies are fetched

Per-mailbox delivery controls

On each mailbox you can set:

• A daily limit for that mailbox
• Auto-pause: the mailbox pauses after repeated failures, with a failure threshold you choose
• A DKIM selector, then Check records to check your domain's email records

Mailbox status

The Health tab shows each mailbox's state:

• Sending paused: sending stopped, usually after failures or an uncertain delivery. Review the cause, then click Resume sending.
• Disconnected: sign in with Google or Microsoft again to reconnect.

If a delivery can't be confirmed, the mailbox always pauses so the same email is never sent twice.

Updated on: 04/10/2026