Moving to another country involves a lot of realizing there are things you didn’t know you didn’t know until you need to know it.
I have written Thanksgiving cards for the neighbours and now need to deliver them. I was about to pop them in their mailboxes when something in a dusty nook in my brain bright itself to my attention. Something about mailboxes, tampering with mail and federal laws. So I didn’t “post” the cards and instead researched the issue as modern people do by asking the question on Facebook.
It transpires there was something worth noting in that musty corner of my memory because there is indeed a law prohibiting anything other than officially posted mail going in mailboxes.
In Scotland, houses had letterboxes, a rectangular hole with a flap cut into an exterior door. Thus post was ostensibly secure as soon as it had been shoved through the flap and it was possible, therefore, to deliver post by hand in the same way the postman delivered stamped and franked post. Here such an action could get me in trouble.
It appears what I have to do is sandwich the cards between the house door and storm door, which is a challenge of speed and dexterity but is at least definitely legal.