If you distribute your Substack podcast on Spotify, they may require you to verify that you own your podcast. They will do this by sending a verification code to the email address associated with your Substack RSS feed.
In order to receive the verification code, you'll need to follow these steps:
1. Head to your publication's Settings page and in the Community section, change the Who can reply to your Emails to Everyone.
2. If you’re not receiving the code, you can change your email address for RSS feeds. In the Branding section, scroll to Email address for RSS feeds and enter the new email address you'd like to use.