During my bulk builds the mail/mailwrapper package gets installed
(obviously).  This creates a bunch of links into /usr/pkg/bin in place
of the native mail system.  When it gets deinstalled, though, those
links are not reversed.  As a result, the mail system is left in a
nonfunctional state.  One immediate result is that the report at the
end of the bulk build cannot be mailed.

How is one supposed to deal with this?

Cheers,
Brook