I am trying to configure send Email quick action on Contact object. Although I have set the deliverability to the All emails and enable email-to-cases, it's not showing up on the page. Why it is not showing in the record page although I added it to the page layout?
Object-specific Send Email actions, available only on cases and you can use the case-specific Send Email action in Salesforce Classic, Lightning Experience, and Salesforce mobile app.
Unfortunately, Global Send Email actions are supported only in Lightning Experience.
Check Quick Actions