[Mailman-Users] Confused About MIME Types

[edcarlsen at cox.net]

All, 
I am a newbe to mailman and I may ask a dumb question, sorry.
I have Mailman 2.1.5 and a list working well. I would like to send an attached PDF file to members on the list. I know there is "Content Filtering" to describe the types of MIME to not allow and they must start with multipart as:
multipart/text
I don't know MIME well enough to know which types I should not allow to be able to send PDF files attached to a email.
Can you point me in the right direction?

Thanks in advance.

Ed Carlsen