On Tue, 20 Feb 2001, Dan Phoenix wrote:
> Just curious how you pull this off?
> so 4 million/30=133 thousand emails per mail server roughly.
> So how do you distribute between the machines evenly ....into ezmlm as
> well?
We use Alteon load balancers to take care of the balancing part, after
that, qmail just works. We did add a hack for a deferral server option to
qmail, meaning after 10 minutes of undeliverable mail (configurable), the
mail gets tossed to another server that tries for up to 2 days before
discarding. This keeps our frontline mailservers from dealing with all
the people that can't spell hotmail.com (you wouldn't believe the number).
The frontline mailservers peaked at about 600-800 messages in the queue
when sending out the 4 million while the deferral servers were sitting
about 10000 messages (up from a normal 7000 or so, also we had 8 deferrals
in rotation).
Also of importance is that we are whitelisted everywhere possible to make
sure that we are rate limited on the amount of mail we send (aol is a good
example of that).
I think that describes the general gist of our mail situation.
-gordon
To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-hackers" in the body of the message
