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Date: Fri, 27 Nov 1998 18:08:55 +0100 (CET)
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From: Ludo Koren <ludo_koren@tempest.sk>
To: kitt@connecticom.com
CC: freebsd-isp@FreeBSD.ORG
In-reply-to: <v04011703b28469fdccc7@[192.168.0.2]> (message from Kitt Diebold
	on Fri, 27 Nov 1998 09:56:20 -0500)
Subject: Re: Sendmail
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>>>>> "Kitt" == Kitt Diebold <kitt@connecticom.com> writes:

    Kitt> Hi Folks.  I'm running Sendmail 8.9.1 and it is REALLY slow
    Kitt> opening SMTP sessions from machines that are behind a
    Kitt> NAT. (The NAT's WAN interface has a real IP address, but the
    Kitt> machines on the LAN side are using the 192.168.0.x
    Kitt> addresses).

    Kitt> Thinking it may be a DNS lookup issue with the 192.168
    Kitt> addresses, I put in an in-addr.arpa table so that
    Kitt> 192.168.0.2 resolves to 192.168.0.2. That doesn't help.

    Kitt> Any other ideas? Anyone else run into this?

    Kitt> Here is an email header for a message that I sent myself, if
    Kitt> that will help: Received: from [192.168.0.2]
    Kitt> (PPP-01.connecticom.com [209.3.110.190]) by
    Kitt> jupiter.connecticom.com (8.9.1/8.9.1) with ESMTP id JAA19166
    Kitt> for <kitt@connecticom.com>; Fri, 27 Nov 1998 09:42:37 -0500
    Kitt> (EST)

    Kitt> This is an entry from the sendmail maillog: Nov 27 09:42:44
    Kitt> jupiter sendmail[19166]: JAA19166:
    Kitt> from=<kitt@connecticom.com>, size=320, class=0, pri=30320,
    Kitt> nrcpts=1, msgid=<v04011705b2846ab0f6f7@[192.168.0 .2]>,
    Kitt> proto=ESMTP, relay=PPP-01.connecticom.com [209.3.110.190]
    Kitt> Nov 27 09:42:44 jupiter sendmail[19167]: JAA19166:
    Kitt> to=<kitt@connecticom.com>, de lay=00:00:07, xdelay=00:00:00,
    Kitt> mailer=local, stat=Sent

I had similar problem because sendmail tried to use ident. Try to add
the following line to your sendmail.cf:

O Timeout.ident=0s

ludo

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