description/documentation more closely. That is, if there is an INTL kludge
line in the incoming netmail message, there will be no "fuzzy" zone matching.
This means that Fuzzy Zone operation will only apply to netmail messages that
do *not* have an INTL kludge line (which specifies the source and destination
zones already). This solves the problem reported by Mark Lewis with
unexpected Fuzzy Zone behavior (when enabled), it was over-riding the
source zone number even though it was specified (via INTL kludge) in the
original netmail message body.