to come from (a place); From: (in email header)
来 · 7 strokes
Simplified form of 來. Pictograph of a stalk of wheat. The current meaning "come" is a phonetic loan. The original meaning "wheat" is now written as 麥.
自 · 6 strokes
Pictograph of a nose. Original form of 鼻 (nose). In China, when people point to themselves, they typically point to their nose.