I have an issue with emails from Magento no displaying correctly on mobiles
The email is reduced to about 2 - 3rds of the screen, when rotate the phone to landscape and back to portrait it displays fine I am testing it on an iPhone 8.
Screenshot of how it first appears
after rotating the phone
@miller75 kindly add the following code into the email template
also, check and set max-width for any larger element into the email.