So I've been searching the internet for a couple of days now, and I can't seem to find something that is relevant for me.
When a customer places an order with an account everything is fine. But when a customer chooses to continue without an account no invoice email is being send. The backend profides a "The order confirmation email is not sent" message, but I can't seem to find any errors in the
Things that i've tried:
- Resetting the guest order email template
- Changing it to the same email template as the default order
- Turning some odd options on/off (people claimed that if you'd disable x it would work)
I don't know where the error lays, because all emails are not sending to non registered users. Track and trace, invoice, order, newsletter ect.
Server info: Ubuntu 18.04 with Nginx and php 7.1 running Magento 2.2.2
Any help / thoughts / hints would be appreciated.