Woocommerce(wordpress) email type displaying 'plain/text' instead of 'text/html'

问题

The Woocommerce email settings for all the orders are showing 'Plain text' as Email type, it should show HTML/Multipart too, but it is restricting or overriding to Plain Text. How can we have the options of HTML/Multipart.

I have added a function below to functions.php

function wps_set_content_type(){
    return "text/html";
}
add_filter( 'wp_mail_content_type','wps_set_content_type' );

but this does not works

回答1:

It may be related to your server settings. To enable such feature, you have to install php-gd, php-xml and php-xmlrpc then restart your service.

来源：https://stackoverflow.com/questions/30139808/woocommercewordpress-email-type-displaying-plain-text-instead-of-text-html