techxprt wrote:
> Thanks AK for reply,
>
> Below are the details
>
> Qmail-Smtpd Logs show
>
> @40000000432ccb9c12c273bc tcpserver: pid 1892 from x.x.x.x
> @40000000432ccb9c12d4ee34 tcpserver: ok 1892 mailservername:x.x.x.x:25
> sendersmailserver:x.x.x.x::45465
> @40000000432ccb9c12e067b4 tcpserver: end 1892 status 0
> @40000000432ccb9c12e0736c tcpserver: status: 119/450
> @40000000432ccb9c3b3c5844 tcpserver: status: 120/450
> @40000000432ccb9c3b3d5dfc tcpserver: pid 1894 from x.x.x.x
> @40000000432ccb9d0c10861c tcpserver: ok 1894 mailservername:x.x.x.x:25
> sendersmailserver:x.x.x.x:21413
> @40000000432ccb9d145c8064 tcpserver: status: 121/450
> @40000000432ccb9d145e0aec tcpserver: pid 1896 from x.x.x.x
> @40000000432ccb9d14720fec tcpserver: ok 1896 mailservername:x.x.x.x:25
> sendersmailserver:x.x.x.x::45468
> @40000000432ccb9d147cb294 tcpserver: end 1896 status 0
> @40000000432ccb9d147d143c tcpserver: status: 120/450
> @40000000432ccb9e16189fb4 tcpserver: status: 121/450
> @40000000432ccb9e1619dc1c tcpserver: pid 1908 from x.x.x.x
> @40000000432ccb9e162e98b4 tcpserver: ok 1908 mailservername:x.x.x.x:25
> sendersmailserver:x.x.x.x::45473
> @40000000432ccb9e1639c7fc tcpserver: end 1908 status 0
> @40000000432ccb9e163a1dec tcpserver: status: 120/450
> @40000000432ccb9f17ea1bc4 tcpserver: status: 121/450
> @40000000432ccb9f17ebcd5c tcpserver: pid 1909 from x.x.x.x
> @40000000432ccb9f17fd1724 tcpserver: ok 1909 mailservername:x.x.x.x:25
> sendersmailserver:x.x.x.x::45477
> @40000000432ccb9f18083e9c tcpserver: end 1909 status 0
> @40000000432ccb9f180890a4 tcpserver: status: 120/450
>
> I tried sending the email the way you said. All works fine. The emails
> are delvd but somehow the connections keep on increasing and the smtpd
> start giving error to people.
>
> This is qmail-smtpd run
>
> QMAILQUEUE="/var/qmail/bin/qmail-scanner-queue" export QMAILQUEUE
> QMAILDUID=`id -u qmaild`
> NOFILESGID=`id -g qmaild`
> MAXSMTPD=`cat /var/qmail/control/concurrencyincoming`
> LOCAL=`head -1 /var/qmail/control/me`
>
> if [ -z "$QMAILDUID" -o -z "$NOFILESGID" -o -z "$MAXSMTPD" -o -z
> "$LOCAL" ]; then
> echo QMAILDUID, NOFILESGID, MAXSMTPD, or LOCAL is unset in
> echo /var/qmail/supervise/qmail-smtpd/run
> exit 1
> fi
>
> if [ ! -f /var/qmail/control/rcpthosts ]; then
> echo "No /var/qmail/control/rcpthosts!"
> echo "Refusing to start SMTP listener because it'll create an open
> relay"
> exit 1
> fi
>
> exec /usr/local/bin/softlimit -m 80000000 \
> /usr/local/bin/tcpserver -v -R -l "$LOCAL" -x /etc/tcp.smtp.cdb -c
> "$MAXSMTPD" \
> -u "$QMAILDUID" -g "$NOFILESGID" 0 smtp
> /var/qmail/bin/qmail-smtpd 2>&1
>
>
> Earlier the softlimit was 40 , I just increased it to 80 but doesnt
> make any difference. The qmail was installed by soomebody else and it
> was working for years and all of sudden on friday it starts increasing
> the smtpd connection and giving problem.
>
> It delivers the emails fine but the emails which are not delivered they
> give no sender , no recips error in qmail-queue.log.
>
> And qmail-smtpd log run file
>
> exec /usr/local/bin/setuidgid qmaill /usr/local/bin/multilog t
> s10000000 n20 /var/log/qmail/smtpd
>
> Just for reference in my process list there are lot of qmail-scanner.pl
>
> qmaild 4212 0.0 0.0 1396 420 ? S 12:13 0:00
> /var/qmail/bin/qmail-smtpd
> qmaild 4219 0.0 0.0 1396 420 ? S 12:13 0:00
> /var/qmail/bin/qmail-smtpd
> qscand 4223 0.1 0.4 6312 4488 ? S 12:13 0:00
> /usr/bin/perl -T /var/qmail/bin/qmail-scanner-queue.pl
> qscand 4224 0.1 0.4 6312 4488 ? S 12:13 0:00
> /usr/bin/perl -T /var/qmail/bin/qmail-scanner-queue.pl
> qmaild 4233 0.0 0.0 1392 416 ? S 12:13 0:00
> /var/qmail/bin/qmail-smtpd
> qmaild 4235 0.0 0.0 1396 420 ? S 12:13 0:00
> /var/qmail/bin/qmail-smtpd
> qscand 4248 0.1 0.4 6312 4488 ? S 12:13 0:00
> /usr/bin/perl -T /var/qmail/bin/qmail-scanner-queue.pl
> qscand 4252 0.1 0.4 6312 4488 ? S 12:13 0:00
> /usr/bin/perl -T /var/qmail/bin/qmail-scanner-queue.pl
> qmaild 4288 0.0 0.0 1400 424 ? S 12:13 0:00
> /var/qmail/bin/qmail-smtpd
> qscand 4290 0.1 0.4 6312 4488 ? S 12:13 0:00
> /usr/bin/perl -T /var/qmail/bin/qmail-scanner-queue.pl
> qmaild 4314 0.0 0.0 1400 424 ? S 12:13 0:00
> /var/qmail/bin/qmail-smtpd
> qscand 4315 0.1 0.4 6312 4488 ? S 12:13 0:00
> /usr/bin/perl -T /var/qmail/bin/qmail-scanner-queue.pl
> qmaild 4316 0.0 0.0 1396 420 ? S 12:13 0:00
> /var/qmail/bin/qmail-smtpd
> qscand 4324 0.1 0.4 6312 4488 ? S 12:13 0:00
> /usr/bin/perl -T /var/qmail/bin/qmail-scanner-queue.pl
> qmaild 4344 0.0 0.0 1400 424 ? S 12:14 0:00
> /var/qmail/bin/qmail-smtpd
> qscand 4347 0.1 0.4 6312 4488 ? S 12:14 0:00
> /usr/bin/perl -T /var/qmail/bin/qmail-scanner-queue.pl
> vpopmail 4370 0.0 0.0 1400 500 ? S 12:14 0:00
> /usr/local/courier-imap/bin/pop3d Maildir
> vpopmail 4371 0.0 0.0 1396 496 ? S 12:14 0:00
> /usr/local/courier-imap/bin/pop3d Maildir
> qmaild 4373 0.0 0.0 1396 420 ? S 12:14 0:00
> /var/qmail/bin/qmail-smtpd
> qscand 4374 0.1 0.4 6312 4488 ? S 12:14 0:00
> /usr/bin/perl -T /var/qmail/bin/qmail-scanner-queue.pl
> qmaild 4394 0.0 0.0 1396 420 ? S 12:14 0:00
> /var/qmail/bin/qmail-smtpd
> qscand 4397 0.2 0.4 6312 4488 ? S 12:14 0:00
> /usr/bin/perl -T /var/qmail/bin/qmail-scanner-queue.pl
> vpopmail 4401 0.0 0.0 1396 428 ? S 12:14 0:00
> /usr/local/courier-imap/bin/pop3d Maildir
> qmaild 4403 0.0 0.0 1400 424 ? S 12:14 0:00
> /var/qmail/bin/qmail-smtpd
> qscand 4406 0.2 0.4 6312 4488 ? S 12:14 0:00
> /usr/bin/perl -T /var/qmail/bin/qmail-scanner-queue.pl
>
> Please suggest something to resolve this problem. Its getting crazy
> with this
>
> Thanks
> Hemant
>

How much resources are available on the system? You are accepting upto
450 simulteneous connections.

Are you being spammed or virus mailings?

Using the qmail-smtpd log, see if a pattern develops for the sending
mail servers.

Try using -D -H in the qmail-smtpd's run file.
Will not be a delay of two seconds (-D)
Will not attempt to lookup the hostname (-H)

The log you provide has no useful information.

You need to see whether a pattern develops. Consult the qmail-send logs.

Is your qmail-queue-scanner running in debug mode? Look through it and
see what that tells you.

Likely issue is that the amount of mailing you began receiving is
exceeding the amount of mail your server/s can handle.

AK