ps-ipp-users is a mailing list for people working with IPP.

 * [http://pan-starrs.ifa.hawaii.edu/mailman/listinfo/ps-ipp-users ps-ipp-users@ifa.hawaii.edu subscription page]
 * [http://pan-starrs.ifa.hawaii.edu/mailman/private/ps-ipp-users/threads.html ps-ipp-users@ifa.hawaii.edu list archive (accessible to subscribers)]
 * [http://pan-starrs.ifa.hawaii.edu/mailman/private/ps-ipp-users/search.cgi ps-ipp-users@ifa.hawaii.edu archive search page (accessible to subscribers)]

You need a username/pw to be able to see the web page, the usual combination for the science consortium pages works; and then you need your email address and mail list password to be able to see the archive.