> For the complete documentation index, see [llms.txt](https://docs.crowdpower.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.crowdpower.io/resources/smart-sending.md).

# Smart Sending

To make sure each customer isn't getting inundated with messages, we created a feature called Smart Sending. When Smart Sending is turned on, an email will not get sent to the customer if one was already sent to them in the send window across all automations and broadcasts in your project.

The send window can be adjusted in [Options](https://app.crowdpower.io/settings/options). By default, all new projects have a window of 3 days, and Smart Sending is enabled on all new automations and broadcasts.


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