I'm having difficulty displaying form fields in the subject line of an eForm email.
I've followed the instructions, plus the form fields display fine in the body of the same email.
[!eForm2db_checkout!]
[!checkRequiredFields!]
[[validateEFormDate]]
[!eForm? &eFormOnValidate=`reqFields` &protectSubmit=`1` &eFormOnBeforeMailSent=`checkout2db` &formid=`payment_form` &to=`orders@XXX.com.au` &fromname=`XXXX` &subject=` Order Confirmation for [.name.], #[.client-order-number.]` &jScript=`autofill_js` &automessage=`order_confirmation` &tpl=`payment_form` &report=`checkout_report` &from=`orders@XXXX.com.au` &gotoid=`32` &sendAsHtml=`1`!]