# STARSTREAM ADVANCED USAGE

- [Adding participants manually](https://help-center.starstream.app/starstream-advanced-usage/adding-participants-manually.md): How to add a participants (attendees) manually to your event, without them having to purchase the event.
- [Sending custom (manual) emails to your participants](https://help-center.starstream.app/starstream-advanced-usage/sending-custom-emails.md): Sending a manual custom email to your attendees about anything related to the event.
- [Avoid Spam Filters](https://help-center.starstream.app/starstream-advanced-usage/avoiding-spam-folder.md): Tips to avoid getting your emails flagged as spam.


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