I have a mail slot going through the wall next to my front door and there's a pretty strong draft coming from it that I want to fix. There is a metal flap on the outside of the wall and nothing on the inside. I can even see daylight in the corners of the slot.
I'm tempted to cover the mail slot and have a normal mail box outside, but before I do that, any tips on how to make these more efficient?
PS, just moved into a new home and glad I found this web site! I have a feeling I'll be here often
