[Mailman-Users] Mailman 2.1.9 - Fedora 8 - upgrade

[Dragos Leahu]

Hi,

I am running Mailman - mailman-2.1.9-8.2.fc8 (updated) from the distribution - on Fedora 8 (up-to-date), with Sendmail - sendmail-8.14.2-1.fc8. 

1. Which is the best way to upgrade Mailman to a newer version (the latest if possible) without taking any risk? 

2. Another issue: even if I have set Mailman (for a certain list) to receive messages only from the list's members and to automatically discard any other messages (to that list) there still are a very few (2 or 3 in a couple of months) messages (spam actually) that did pass through to the list. What should I do in order to prevent this from ever happening again?

I must say I am a novice administrator of Mailman.

Regards,
Dragos
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