Commerce(Email action button is not working)

Summary

Email action button to send the proposal document through mail is not working

Content

Dear All,

In the commerce transaction-level email action button is not working we have followed CPQ demo instance. In the demo instance, it is working but in our dev, it is showing email sent successfully but we didn't receive any email related to the quote document.

Do we need to set up anywhere in the instance for the email action button?

please help us in resolving the issue.

Thank you,

Keerthi Bochkar