You haven't set the -H flag, so by default it's trying to look up the remote
hostname in DNS for $TCPREMOTEHOST
This may take a long time if reverse DNS isn't set up properly for the host
On Monday 26 April 2004 12:23, Chris Miller wrote:
> I just tested it again and timed it. 10 seconds until I get the banner from
> the time I connect and issue the EHLO command. That's unacceptable, it
> should be nearly instant. It's not like this is a slow box or anything
> (dual xeon box, it's got some ummph).
> Any ideas as to why the long delay?
> Also, you wanted me to run the command "ps auxwww |grep '[t]cpserver
> vpopmail 3628 0.0 0.1 2104 1328 ? S 07:48 0:00
> /usr/local/bin/tcpserver -v -R -l rhost1.zfx.com -x /etc/tcp.smtp.cdb -c 50
> -u 89 -g 89 0 smtp /var/qmail/bin/qmail-smtpd rhost1.zfx.com
> /var/vpopmail/bin/vchkpw /bin/true
> Chris Miller
> -----Original Message-----
> From: Peter Palmreuther [mailto:[EMAIL PROTECTED]
> Sent: Monday, April 26, 2004 2:55 PM
> To: Chris Miller in vpop
> Subject: [vchkpw] Re: SMTP Slowness
> Hello Chris,
> On Monday, April 26, 2004 at 3:42:40 PM you wrote (at least in part):
> > Now I've got another problem with SMTP. When I try to connect, it takes
> > FOREVER to send the welcome message. Go ahead and telnet into
> > on port 25 and issue a HELO, and you'll see what I mean.
> Both, connecting and issuing a EHLO (or HELO), is just a matter of
> seconds from here.
> > I thought that it could be something with DNS, but everything seems
> > fine with DNS. The hostname and reverse DNS entries for the box are
> > in there, and the DNS servers on the server are set correctly so it
> > should be able to resolve it's self pretty quickly (the DNS server
> > it uses is on the local box, as is the zone for the domain).
> Well, it nevertheless could be a DNS related problem. The "self
> referring" reverse entries are not that much of a matter. What takes
> time most times this behavior is seen is reverse resolving of
> connecting client. So what's your 'tcpserver ... qmail-smtpd'
> invocation line?
> : ps auxwww |grep '[t]cpserver .*qmail-smtpd'
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