So I'm running Magento 2.1.5 and I have installed a MagePal extension which sends email through Amazon SES.
If the system sends any emails from anywhere everything works fine. But if I am creating an order I get an error.
If I create an order as a customer, it just comes back:
An error occurred on the server. Please try to place the order again
This has been throwing me for a loop and I have no idea what is going on.
But then I placed an order from the admin and get an error also but it's a bit different. It says:
Invalid MAIL FROM address provided
So it seems to be an error maybe from Amazon SES? However, all other emails I send are fine, if I change a password the user gets notified, I send a test, it comes through, if I "forgot password", it works. I'm stumped and I don't have much else to go on, if someone has any ideas of even where to look.