Back again. I’m using the latest PMail on Win 11 and am failing in getting my signature to appear on sent mail, confirmed by sending to myself. My setup is as shown in the screenshots. What setting is wrong?

Inconsistent Variant selections! In one you have selected the Variant: "Internet address, formatted content" and the other you selected "Local address, formatted content". Change the "Local address, formatted content" one to "Internet address, formatted content".

Thanks, Brian - well spotted!