I searched the threads for a while, and couldn't find the response that I need. I apologize if this is a double post.

I am trying to set up a mail server using RH 9 and sendmail. I am able to receive mail, but just can't send it. Well, I can send mail to the account my ISP gave me, but no where else. (FYI - I am using the ISP account as a test account.) I'm using pine on the RH9 box to send the mail. Here is the header of the email I sent to my ISP email accout:
**********************************
Return-Path: <me@'mydomain.com'>
X-Original-To: clinging@myisp.com
Delivered-To: clinging@myisp.com
Received: from localhost (localhost.localdomain [127.0.0.1])
by mail01.myisp.net (Postfix) with ESMTP id 8E63EA470C
for <clinging@myisp.com>; Mon, 15 Mar 2004 15:21:24 -0700 (MST)
Received: from mail01.myisp.net ([127.0.0.1])
by localhost (mail01.myisp.net [127.0.0.1]) (amavisd-new, port 10024)
with LMTP id 31307-01-17 for <clinging@myisp.com>;
Mon, 15 Mar 2004 15:21:12 -0700 (MST)
Received: from hal.mydomain.com (srls-160-119.bzn-co-c7206-01.myisp.net)
by mail01.myisp.net (Postfix) with ESMTP id 878C0A466A
for <clinging@myisp.com>; Mon, 15 Mar 2004 15:17:28 -0700 (MST)
Received: from mydomain.com (localhost.localdomain [127.0.0.1])
by hal.mydomain.com (8.12.8/8.12.8) with ESMTP id i2FMHSu4015958
for <clinging@myisp.com>; Mon, 15 Mar 2004 15:17:28 -0700
Received: from localhost (me@localhost)
by mydomain.com (8.12.8/8.12.8/Submit) with ESMTP id i2FMHS01015954
for <clinging@myisp.com>; Mon, 15 Mar 2004 15:17:28 -0700
Date: Mon, 15 Mar 2004 15:17:28 -0700 (MST)
From: "Me" <me@'mydomain.com'>
To: clinging@myisp.com
Subject: New
Message-ID: <Pine.LNX.4.44.0403151516440.15953-100000@mydomain.com>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
X-Virus-Scanned: by amavisd-new at myisp.net
**********************************
The part that worries me is this line: Received: from localhost (localhost.localdomain [127.0.0.1])

I don't think it should read localhost.localdomain, but I don't know how to change it.

Yes, you will need to have most likely a valid domain so you can configure your email to send from, etc. You can edit this the correct way using the m4 files or do it like I do and just edit the sendmail.cf file.

I do have a vaild domain name. I have been editing the sendmail.mc. What do I need to add so it doesn't try to send as localhost.localdomain?

Hi Clinger. Apparently I have the same problem and I was wondering if you have resolved yours. If yes, could you please post what you did? Thanks in advance.

I've never setup sendmail before, but here's a helpful way to findout where that setting is to change it. Goto the applications folder, then:

grep -inr searchterm *

Ex: grep -inr localhost.localdomain *


This should show you all the files that contain that string.

Hi guys

I've set up quite a few mail servers using sendmail and fetchmail. In answer to your previous question...if you look at your /etc/mail/sendmail.cf file you'll find a line that reads - Fw /etc/mail/local-host-name - under the heading "Local Info" this is pointing to a file in /etc/mail that represents the local domain name.

So now go to your local-host-name file and look in there you should see 'localhost' and maybe one or two other names this is where you shoud put in your registerd name (on a new line).

Save and restart sendmail

Hope this helps

What if there is no "Local Info" heading ? How should i go about adding it?

Ok...

Check in your .cf file in /etc/mail and you should have a line that starts with DS

Here's mine (an original obviously):

# "Smart" relay host (may be null)
DS

see if you can fiind this....

if you do then this is where you allow relaying.
now type in your relay host after the DS.
e.g.

DSsmtp.isp.com

Note: No spaces

This will allow your users internaly to send out mail.

also check - do you have a firewall and how is your MASQ and IPTABLES setup.

Did you make a backup of your original .cf file before you started? - always make backups

If not I can send you the original that comes with the distro and you can work from that.