Hello there,
hope you are doing well! 🙂
We have been testing the emails in our installation and seem that all is working properly, to check what is happening in your site, please, try to deactivate all plugins, leaving only WooCommerce and YITH Gift Cards active, and see if the problem is solved. If so, try to activate them again, one by one, to see which one causes the issue.
If the problem isn’t caused by a plugin, try to activate the default theme Twenty Sixteen and see if you have the same issue.
Also, if you have customized some files in your theme, please try with a fresh installation without any customization.
Please try this solution and let us know any news, please.
Have a nice day!
Hello there,
We hope you’re doing well 🙂
We are setting this topic to solved for now as we have no more news from you, but please feel free to open a new one at any time to receive additional support on this issue.
Have a good day.