Instructions as to how to query the radsafe listserver

[RWILSON@UTMEM1.UTMEM.EDU]

I want to ask the following question but do not know how to put it on the 
listserver - "Need information on lead shielding for a nuclear medicine 
SPECT installation, what thickness in the room walls, beginning at what 
height from the floor and extending to what height above the floor.  Does 
this apply only to walls between imaging rooms or also to corridor walls 
(and doors), to account for patients passing by containing isotopes?"

Will appreciate any info.  RWilson@utmem1.utmem.edu