Money solicitations except those having University approval, e.g, SECA
Membership recruitment not originated by University administration.
Any campaign or election literature of partisan nature.
Correspondence violating the policies of the Board of Trustees of Southern Illinois University
Items of material value such as money, money orders, checks, etc.
Unstamped mail:
union material, literature, etc.
commercial solicitations
advertisements for the sale or rental of personal or real property
personal mail