Oops, one more question.
11) Are you getting a lot of "Connection Refused" errors or are you
usually getting slow responses?
Thanks,
Erik
On 4/25/06, Erik Espinoza <[EMAIL PROTECTED]> wrote:
> > We recently migrated most of those users from POP3 to IMAP.
> > Before, IMAP was barely used.
>
> I have about the same number of users on one of the QmailToaster
> servers. We used to have most users on POP3, but have migrated most to
> IMAP-SSL. We noticed no load difference.
>
> > A reasonable thought, but if it were DNS it would be consistent.
> > There's a local caching nameserver on the mailserver.
>
> We're doing the same, this helped big time.
>
> I have a few questions:
> 1) Are you using the latest updates for your distsro?
> 2) Can you e-mail a pic of your stats-toaster of the IMAP graphs?
> 3) Can you paste a copy of `rpm -qa | grep toaster`
> 4) What does your memory usage look like when your users are using
> imap big time?
> 5) Does your hosts table have just localhost and the fqdn defined?
> 6) What kind of delay do you see when you telnet, does it take a while
> for the IMAP banners to pop up?
> 7) Have you migrated from an older version of QmailToaster (such as
> the old 1.0 branch w/ horde)
> 8) Are most of your users accessing the QmailToaster's IMAP through
> some sort of firewall?
> IE
>
> Users -> PIX DMZ -> QmailToaster
>
> 9) Does it make a difference if you disable the iptables firewall
> (temporarily for testing of course)
> 10) Is your resolv.conf pointing to localhost or the machines static
> ip for your caching name server?
>
> Sorry for the large number of questions.
>
> If you have some time, maybe we can speak on IRC later.
>
> Thanks,
> Erik
>
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