Dear NetApp Webmaster: please fix this (as noted, the link to the source from the TR 3022 page, which *is* available on our Web site, is broken). Thanks.
It should now be fixed; the link now takes me (and, hopefully, the rest of you) to an un-gzipped version at
http://www.netapp.com/ftp/postmark-1_11.c
with the renaming presumably done to avoid aggravation when using certain browsers on certain operating systems - I assume there's a reason why Netscape on NT "helpfully" makes sure there's only one "." in a file name when you save it, although, given that I tend to save stuff to my home directory and then process it further on UNIX, I'd prefer to do without Netscape's "help" in this situation.