> For the complete documentation index, see [llms.txt](https://docs.reach-book.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.reach-book.com/mailboxes/sending-rules-and-mailbox-health.md).

# Sending rules and mailbox health

## Workspace sending rules

![The Sending rules page](https://965745608-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fdg7LyestsaNAIIzzILlv%2Fuploads%2Fgit-blob-9325fc2c49436cddf066cbfda3b71ed223664a4e%2Fsending-rules.webp?alt=media)

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.