In order for the -SEARCH-REQUEST aliases to work on unix servers, they
must be added to the /etc/aliases database along with the other aliases
for the list.  See the unix installation guide (or the Site Manager's
Manual, chapter 7.2.1) for more information.

VMS sites running PMDF will also have to add an alias for -SEARCH-REQUEST
addresses.  See your installation guide and/or the Site Manager's Manual,
chapter 7.2.2.

Note that adding aliases is generally something the server's mail postmaster
will have to do.

Nathan