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4 changes: 4 additions & 0 deletions content/concepts/broadcasts.mdx
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Expand Up @@ -131,6 +131,10 @@ Broadcasts respect all [user preferences](/concepts/preferences) that are config

Knock also supports [commercial unsubscribe](/preferences/commercial-unsubscribe) preferences that will automatically add a 1-click unsubscribe header and link to your email messages, to respect CAN-SPAM compliance.

## Best practices

If you plan to send broadcasts regularly or at high volume, we recommend configuring a dedicated email channel for marketing sends that is separate from your transactional email channel, and ideally using a separate sending domain or subdomain. Marketing and transactional email have different engagement and complaint patterns, and isolating them protects the deliverability and sender reputation of your transactional email if a broadcast generates higher-than-expected unsubscribes or spam complaints.

## Frequently asked questions

<AccordionGroup>
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