I’m a commodity trader (the non-technical side of this project) that built a web application that delivers auto-formatted and tailored product offerings to customers based on inventory scattered across the Eastern US. Im wondering if I can populate all the ‘Draft’ emails from my application into a table in my app and use the Gmail API to send one-by-one by pressing ‘Enter’ in quick succession and not have to worry about deliverability issues? When using an Email API provider they require an ‘Unsubscribe’ button and other rules as per Acceptable Use Policy. My customer base is about 500 people so Id rather sit at my desk and press ‘Enter’ 500x in quick succession rather than send in bulk via Email API with all the rules that basically show my hand that the offerings are automated to customers (would prefer it to look like I did it one-by-one).

Want to use this feature but not able to get a hold of anyone who can help me with permissions to use this feature. And without permission I am only able to get the text meta data and images are missing when promotional email sent out.