Odd quirks on my mac

Having odd issues with getting the signatures to work correctly. I finally figured out a way to add signatures manually without having them add automatically and even that took some trial and error. the boxes in preferences on my mac looks nothing like what is on the screenshots in airmail help with regard to signatures. Beyond that, seems to be fine. i bought this app in anticipation of its, allegedly, imminent integration with sidekick.

texbama about Airmail - Lightning Fast Email, v3.01