I'm really struggling with what seems like it should be a simple layout question for KOMA scrlttr2.
I simply cannot find any way to get the bottom margin of a letter to be anything less than 2 inches. I've browsed through the KOMA documentation. I certainly understand the authors' wish for users to understand the principles of proper page layout for publication. However, a letter is not for publication. A bottom margin of 2-3 cm may be too small for publication, but it's entirely reasonable for a letter.
So I think it should be a fairly simple question, but the documentation provides pounds of theory but nothing like a simple answer.
First I tried the geometry package, but the "bottom" property had no effect. Scrlttr2 still insists on breaking the page about 2 inches above the page boundary.
Then I saw that typearea is recommended for KOMA scripts. The width parameter of \areaset clearly takes effect, but the height parameter does not.
I'm sure there must be a way to do this. There's plenty of room on the page for the content. It's just that scrlttr2 is refusing to let me use that space.