We have a Magento 2.2.0 shop that has had its data migrated from our previous 184.108.40.206 shop, but we're getting to the point of testing orders and email communications - we want to ensure that previous customers will not have duplicate order emails sent to them, how can we accomplish this (while leaving email communcations enabled for testing new orders), with cron jobs running in the background?
We currently have the email disabled at the server level, but when we re-enable it, is there not a way within Magento to just not send email from cron jobs?
I guess now I understand your question.
Maybe you got emails into the queue ready for send. Maybe you can truncate that table so the queue list will be empty.