We have a very specific problem. There is a condition on our form that sends an email to a specific mail provider that only works with the Return-Path header. I've tested it with a simple mail.php code. Without this header, it blocks, but with the header, it works.
I'd like to know what is the best approach to send mail with Chronoforms and specify additional headers.
I'd like to know what is the best approach to send mail with Chronoforms and specify additional headers.