Bill -

Thanks for the reply.

I followed your advice below and it doesn't seem to
have made a difference.

I did a 

netstat -n -p TCP

and it shows a couple of hundred active connections,
with 130 or so being the SYN_RECV state. Could this be
some sort of DOS attack?

Thanks again for your help.

amd



--- Bill Shupp <[EMAIL PROTECTED]> wrote:
> andy drexler wrote:
> > I searched the mail archive and found out why the
> log
> > file was empty. I added the -v to the smtpd/run
> script
> > and the log is now growing. On the server, there
> are a
> > bunch of running smtpd processes:
> > 
> > 21728 ?        S      0:00
> /var/qmail/bin/qmail-smtpd
> > mail2.smartsite.net /home/vpopmail/bin/vchkpw
> > /bin/true
> > 
> > there are about 20 of these processes. the
> > var/log/qmail/smtpd/current file loks like:
> > 
> > @400000003fe135d52844b54c tcpserver: pid 22727
> from
> > 66.218.86.99
> > @400000003fe135d5284a5e84 tcpserver: ok 22727
> > 0:64.186.170.70:25 :66.218.86.99::41417
> > @400000003fe135d534ca88b4 tcpserver: end 22727
> status
> > 0
> > @400000003fe135d534caafc4 tcpserver: status: 19/20
> > @400000003fe135d534ccc304 tcpserver: status: 20/20
> > @400000003fe135d534da4024 tcpserver: pid 22729
> from
> > 131.202.3.20
> > @400000003fe135d534de85e4 tcpserver: ok 22729
> > 0:64.186.170.70:25 :131.202.3.20::33911
> > 
> > a small number of messages to seem to be getting
> out,
> > but basically none of my users can send.
> 
> Looks like your concurrency is maxed.  Try
> increasing your 
> /var/qmail/control/concurrencyincoming to 50 and
> restart qmail-smtpd.
> 
> Regards,
> 
> Bill
> 

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