Can I use a gmail address to send emails using Emails & Automations?

To use this ShinePages "Emails & Automations" functionality you will need to use a matching business email address - or a "domain hosted email".

A business email address looks something like: yourname@yourdomain.com - (NOT a free @gmail.com account). You will need to purchase a business email address/email hosting separately. Typically you can purchase this email account from the same place where you purchased your domain name - Namecheap, GoDaddy, Google Workspace, etc.