Hello.
We are in the planing stage of a 500.000+ users mailserver (pop & smtp
only, no shell's or anything).
During our brainstorm we've came to few questions:
We assume that every account will run on the same UID (to break 65k uid's
limit).
a) how can we arrange an universal group-quota in this kind of system? we
don't want to use unix groups because it would limit us to 65k groups and
we don't want it. And keep in mind that we need a FAST solutions as quotas
has to be checked/changed on every delivery/download.
b) what is the fastes database system that we can use for
authentication/user info (like maildir location etc.). It doesn't have to
be a relational one, only thing that is important is SPEED. If this
database will be used also for quota storage then also
modification/addition speed is important.
Please try to think a bit about it and share your findings. This may help
setting up quite a nice server (it could be used as an example of
"enterprise scale qmail setup" to convince your boss' all around :)) ).
If someone implements/implemented this kind of server then please let me
know, i would like to discuss about it.
Krzysiek
