As far as multi-drop or not, I'm not using ANYTHING yet (not via e-smith anyway).
When I start using e-smith, though, to handle our email, we'll be doing the email totally via e-smith using static IP addresses.
We'll have 6 IP addresses from our DSL provider that I expect we'll use as the web-server, email-server, and the others will be un-used.
So with e-smith handling the email completely, can we solve this problem of the mailing-lists?