[Mailman-Users] Mailman list size limitations?

[Chuq Von Rospach]

> What is the largest known MM list out there?

I can go to about 50K, on moderately slow hardware (sun E250). An 
xserve can handle that without breaking a sweat.


> We're thinking of using it for a list that currently contains 400,000
> entries, though probably about 20% of those should be discarded/are 
> dead.
>>

I'd say you're probably asking for problems, unless you use multiple 
lists and an umbrella. It might work, I'd be really curious how the 
internal pickles scale to that. I think you're likely to his disk I/O 
issues.

When my stuff started getting large, I wrote systems customized for 
large-scale delivery and management. My guess would be without a good, 
random backing store database for the subscriber list, anything that 
large would really struggle. I'd definitely want that subscriber list 
in SQL somewhere.