[Mailman-Users] Increasing the Speed of Email Delivery

[Carl Zwanzig]

Lots of it depends on the MTA (general opinion is that postfix seems to be 
the fastest), connectivity, and list settings (personalized email will take 
much longer).  Check out the FAQ for performance, and as Adam mentioned, the 
list archives)

FWIW, before you change hardware, have you looked at which resources are 
constrained? Also, if it's a dedicated server, why are you using cpanel?

z!