Dear Christopher,

>>> What setting in the list header controls
>>>whether a sender receives

Because you asked about the "list header,"
I think the correct answer is:

Default-Options= Repro,Review,Ack,NOMIME,INDEX

IHTH (I hope this helps).

 Pax,
Ballew Kinnaman <[log in to unmask]> 206/463-2322
Discussion list owner:
Allergy ---> http://www.Immune.Com/allergy/index.html
Arthritis ---> http://www.Emissary.Net/arthritis/index.html
PCHealth ---> http://www.Emissary.Net/pchealth/index.html
Latex Allergy ---> http://www.Immune.Com/rubber/index.html
Thyroid ---> http://www.Emissary.Net/thyroid/index.html