Write a specification, suitable for becoming an IETF standard, of a facility to have a message to a Usenet Newsgroup delivered only to those members of the Newsgroup, who have a certain profession, like medical doctors or salespersons.


profession = "Profession:" [LWSP] 
             professionname 1*("," [LWSP] professionname)
     professionname = 1*(ALPHA)

The "Profession" header specifies a list of professions. A message with this header should only be distributed to people with this profession.

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