Hello,
We have just completed migrating a sendmail installation for roughly 15000
users to qmail. After doing so, we are experiencing longish delays on the
delivery of incoming messages.
We currently have qmail-smtpd starting from tcpserver using:
#!/bin/sh
QMAILDUID=`id -u qmaild`
NOFILESGID=`id -g qmaild`
exec /usr/local/bin/softlimit -m 2000000 \
/usr/local/bin/tcpserver -c 512 -v -pR -x /usr/local/etc/tcp.smtp.cdb \
-u $QMAILDUID -g $NOFILESGID 0 smtp \
/usr/local/bin/rblsmtpd -b -r \
"relays.mail-abuse.org:Open relay problem - see
<http://www.mail-abuse.org/cgi-bin/nph-rss?%IP%>" \
-r dialups.mail-abuse.org \
-r rbl.maps.vix.com \
/var/qmail/bin/qmail-smtpd 2>&1
And logging using:
#!/bin/sh
exec /usr/local/bin/setuidgid qmaill /usr/local/bin/multilog t s2500000
/var/log/qmail/qmail-smtpd
I have increased our conncurrencylocal and concurrencyremote to 50 each.
The qmail-send log we have seems to indicate that we aren't coming close
to this limit:
@400000003a105ba216072edc status: local 1/50 remote 3/50
@400000003a105ba21626288c end msg 695835
@400000003a105ba2196aff04 new msg 695707
@400000003a105ba21a78f464 info msg 695707: bytes 8004 from <> qp 18635 uid
59
@400000003a105ba21dda6ee4 starting delivery 18024: msg 695707 to remote
[EMAIL PROTECTED]
@400000003a105ba21ddd7454 status: local 1/50 remote 4/50
Our architecture is setup as:
mx0.gwi.net - Incoming server, BDS/OS, Dual PIII 550, 256 MB RAM. This
server writes incoming mail to a NetApp NFS server. Unfortunately also
running qmail-pop3d right now for some of our customers. Will be disabling
this ASAP.
pop0.gwi.net - POP server. (Same hardware). Just running qmail-pop3d and
reading from the NetApp.
The delay seems to occur from when mx0 accepts the message to when mx0
writes it to the user's Maildir. My guess would be that the queue is not
being processed fast enough.
We are NOT yet using the big-todo patch at this time.
We are seeing delays of up to a couple hours on messages, so any
assistance or pointers in the right direction would be appreciated.
If you would be so kind as to CC any responses to [EMAIL PROTECTED] (to
get to me directly rather than through the qmail server) it would be
appreciated.
-----------------------------------------------------------------
Jamin A. Brown Systems Operations Department
[EMAIL PROTECTED] * Great Works Internet * 207.286.8686 x142
RSA PGP Key: http://www.gwi.net/~jamin/pgp/jamin.asc
