SA Bugzilla – Bug 480
spamd port not registered with IANA
Last modified: 2002-08-22 20:12:42 UTC
When running nmap (on Redhat Linux 7.x+) system against a system running spamd incorrect name for the service for that port comes back. Also port is unassigned with IANA.
http://www.iana.org/cgi-bin/sys-port-number.pl notes: In order to obtain a system port number you need to have a specification documented in the form of an RFC, an Internet-Draft that is intended to be published as an RFC, or a permanently and readily available reference that the IETF could standardize if it chose to. argh ;)
Unlikely to get around to writing and submitting an RFC for such a narrow protocol any time soon.