Hi
I am about to install John M. Simpsons suite of patches around
validrcptto.cdb, see:
http://qmail.jms1.net/patches/validrcptto.cdb.shtml
The "onchange" patch, see:
http://qmail.jms1.net/vpopmail/
In order to only recieve mail, on my system, for which I have a valid
recipient.
Allan Dukat E|:-{)=
On Fri, 4 Jan 2008, Matthew Goodman wrote:
After my recent issues with maildrop and delivering mail, I got to know
my system a little better. Having scanned through the qmail-queue I
noticed a lot of messages just sitting around for days on end trying to
deliver to non-existent email boxes, in response to spammers. Some of my
bigger customers had all email set to 'bounce' and not 'delete'.
Several hundred e-mail accounts getting several thousand spams a day
ended up creating a constant flow of between 10,000 and 20,000 mail
messages "bouncing" in the qmail-queue on a daily basis.
I was getting pretty worried about the hard disks that contain my mail
queue and the /var/vpopmail/domains tree. They were dishing out between
250 - 400 (I've seen it as high as 800) transactions per second on
average. After setting vdelivermail delete on some of my bigger domains,
my queue has dropped to under 1000 messages, and iostat shows a
SIGNIFICANT decrease in disk activity during both peak and off-peak
times.
I wish someone had told me about that earlier. What a great tool for
reducing unnecessary load.
!DSPAM:477e2355310542473718141!
