[Mailman-Users] 2 questions

[Hillel Weintraub]

I looked through the faqs, but couldn't find any information about 
these two points.

1) is it possible to create a maililng list which anyone can post 
messages to (without being a designated member), but only members can 
read?  If so, how?

2) is it possible to have messages numbered so that each mail has a 
unique and visible number?  If so, how?

thanks, Hillel Weintraub, a Mailman user through his server at 
Hostdime.com
(in Japan)