Message headers aren't transmitted
I had a quick look and can see it should be a fairly quick implementation
It's just a loop in FormPartsBuilder that replicates the Headers from the mail message into mail gun variables
"h: prefix followed by an arbitrary value allows to append a custom MIME header to the message (X-My-Header in this case). For example, h:Reply-To to specify Reply-To address."
If I get time i'll post a pull request... but It's low priority for me for the project we're working on.
Message headers aren't transmitted I had a quick look and can see it should be a fairly quick implementation It's just a loop in FormPartsBuilder that replicates the Headers from the mail message into mail gun variables "h: prefix followed by an arbitrary value allows to append a custom MIME header to the message (X-My-Header in this case). For example, h:Reply-To to specify Reply-To address."
If I get time i'll post a pull request... but It's low priority for me for the project we're working on.