> For the complete documentation index, see [llms.txt](https://help.inboxhour.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.inboxhour.com/messenger-tools/sms-and-email-external-subscribers-tutorial.md).

# Sms & Email External Subscribers Tutorial

{% embed url="<https://www.youtube.com/watch?v=nkPEwERW3-k>" %}