Create an email sequence automation for your community in the following steps:
1. Click on the Scale tab on the left side bar.
2. Click on Sequence.
3. Click on the Add Sequence button and build out your email sequence.
4. Publish the sequence when done.
5. Click on Automations on the left and click Add Automation.
6. Add your trigger which is "User enrolls in a community".
7. Select your community from the drop down list.
8. Add your action which is "Email Sequence"
9. Select your email sequence from the drop down list. End event and publish.
10. Watch the video below for more information.