The place for the address of an individual is a subscriber list, name server, etc. Including the subscription address also seems to me superfluous. Again, these addresses are ephemeral. They are best obtained from announcements, programs that list mailing lists, etc. Listing an archive address is convenient but we don't typically include booksellers' ordering instructions.
Archives come and go, means of access change, and certainly directory pathnames change.
Many sites should have local archives. This information is entirely available from the original posting. How the information should be formatted depends on the citation style of the paper or electronic journal in question. I hope that eventually we'll replace printed style citations with logical markup, but just now even the best markup systems leave a lot to be desired in clarity, portability, etc. Judging books by their covers, or articles by their journals, is as silly as judging grammars by counting features.