I'm normally a digest subscriber and I saw this come through the digest.
We have approx 15,000 accounts on our server.
I solved the "unable to fork" problem using sh's limit (not the bash(?),
csh(?) ulimit) and by increasing the value of the -c option in tcpserver.
I have the following lines in my init script:
# Start qmail for local deliveries.
csh -cf '/var/qmail/rc &'
# Start qmail SMTP.
csh -cf '/root/bin/qmailsmtprc &'
# Start qmail POP3.
csh -cf '/root/bin/qmailpop3drc &'
and, for example, here's my qmailsptprc script using limit:
#!/bin/sh
limit maxproc 240
/usr/contrib/bin/tcpserver -c 100 -x /etc/tcp.smtp.cdb \
-u 13985 -g 105 0 smtp \
sh -c '
/usr/contrib/bin/fixcr | /var/qmail/bin/qmail-smtpd
cd /var/qmail/autoturn
exec /usr/contrib/bin/setlock -nx $TCPREMOTEIP/seriallock \
/usr/contrib/bin/maildirsmtp $TCPREMOTEIP \
autoturn-$TCPREMOTEIP- $TCPREMOTEIP AutoTURN
' 2>&1 | /var/qmail/bin/splogger smtpd 3
P. Pirn - Sys Admin - see complete headers for more info
