I would like to add the X-Spam-Flag and X-Spam-Status headers my emails.
I once succeeded long ago to do that but then after updating mailcow my changes were overwritten and lost.
I don’t remember how I had done that and I don’t seem to find it again by searching everywhere with all imaginable keywords.
Also, I think remembering there is a way to make changes that will not be lost upon updating, so if you could help me on that too.
Could anyone please help me with that easy one.