I will always have a fondness for UUCP. I eventually moved to qmail (a bit hacked up to handle for some unusual requirements) for all the UUCP related stuff.

UUCP had it's issues, but it was (and still is) one of the best was to transfer stuff over really bad connections. We worked at a place where we had really remote locations and UUCP stuff worked without much work.

Plus, I learned a ton in writing something to do reports and monitoring of the UUCP connections. Fun times, but I am still scarred Sendmail. Some wounds are pretty deep.