I just double-checked, and sqlite doesn't in fact use this. Perhaps I was remembering sqlite2. I've edited my post. Btw, Apple uses dovecot and postfix on thei

I just double-checked, and sqlite doesn't in fact use this. Perhaps I was remembering sqlite2. I've edited my post. Btw, Apple uses dovecot and postfix on their Xserve platform, which means Apple does depend on this behavior. Since this is a race condition on Mac OS X (Where it is atomic on UNIX and POSIXish systems like Linux), people may think these programs work fine on Mac OS X, when in fact they can lose or destroy mail in some circumstances.