Date: Mon, 11 Jun 2001 21:44:18 +0300 From: Giorgos Keramidas <keramida@ceid.upatras.gr> To: P Glenn <psfglenn@yahoo.com> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: sendmail and dialup connection Message-ID: <20010611214417.A2209@hades.hell.gr> In-Reply-To: <20010610222242.51572.qmail@web14704.mail.yahoo.com>; from psfglenn@yahoo.com on Sun, Jun 10, 2001 at 03:22:42PM -0700 References: <20010610222242.51572.qmail@web14704.mail.yahoo.com>
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On Sun, Jun 10, 2001 at 03:22:42PM -0700, P Glenn wrote:
> Hello,
> I am running a recent 4.3-stable and things have been
> good to me but I would like to know what I must change
> in sendmailconf to allow me to send mail to the
> internet from my dynamically addressed ip.
Well, you can always have your Sendmail forward all outgoing mail to your
ISP's mail gateway, by setting the SMART_HOST to the ISP's mail exchanger
(if you're using a master-config file, and generating sendmail.cf from a
local.mc file). This will change the line starting with DS in sendmail.cf to
a proper value. For instance, mine looks like:
% grep ^DS /etc/mail/sendmail.cf
DSmail.otenet.gr
and all outgoing mail is sent first to my ISP's mail gateway. If it does have
a valid envelope-from address, then the ISP's mail server should not reject
it. All others will see the SMTP connection coming from a host that doesn't
have a dynamic address (the ISP's mail gateway), and accept it.
This moves some of the burden of checking if this is a valid client from the
mail servers of the world, to the one your ISP has set up for its clients, and
is a very nice and clean solution to your problems :)
-giorgos
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