[SLUG] Running a mail server in the privacy of my own home

From: Paul M Foster (paulf@quillandmouse.com)
Date: Wed Apr 03 2002 - 22:23:28 EST


Bill cross posted this to MDLUG, and someone from there CC'd our list,
where it (of course) bounced.

----- Forwarded message from slug@lists.nks.net -----

From: Joe Landman <landman@scientificappliance.com>
To: mdlug <mdlug@mdlug.org>
Cc: slug@nks.net

First off: I am not a mail expert. Or a novice. Yet somehow I made
postfix work. Blind may be leading the blind here...

I did my usual test:

    [landman@protein.dtw.macsch.com:~]
    1 >Mail -v bill@organic-earth.com
    Subject: a test from my home to yours... hope it works...
    Hi Bill, just testing for you....

    Joe

    .
    Cc:
    bill@organic-earth.com... Connecting to a.organic-earth.com. via esmtp...
    /home/landman/dead.letter... Saved message in /home/landman/dead.letter

Ahh.... when my system attempts to send mail to organic-earth.com, it
goes to ... ta dah... a.organic-earth.com . Now why is this important?

    [landman@protein.dtw.macsch.com:~]
    2 >ping a.organic-earth.com
    ping: unknown host a.organic-earth.com
    [landman@protein.dtw.macsch.com:~]
    3 >ping organic-earth.com
    PING organic-earth.com (64.27.213.176) from 192.168.1.34 : 56(84) bytes
    of data.64 bytes from 64.27.213.176: icmp_seq=0 ttl=49 time=39.660 msec

Yup... you guessed it, no such host name exists. Why is this?

Ok, lets look at the MX records (from nslookup) under DNS.

    [landman@protein.dtw.macsch.com:~]
    9 >nslookup
    Note: nslookup is deprecated and may be removed from future releases.
    Consider using the `dig' or `host' programs instead. Run nslookup with
    the `-sil[ent]' option to prevent this message from appearing.
> set type=MX
> scientificappliance.com
    Server: 68.42.244.6
    Address: 68.42.244.6#53

    scientificappliance.com mail exchanger = 10
    www.scientificappliance.com.
> organic-earth.com
    Server: 68.42.244.6
    Address: 68.42.244.6#53

    Non-authoritative answer:
    organic-earth.com mail exchanger = 10 a.organic-earth.com.
    [...]

Ok. Somewhere in your (or register.com's) dns world, your mail
exchanger is named a.organic-earth.com.

Now for a quickie sanity check. I am not hacking your machine here,
just seeing if port 25 responds.

    [landman@protein.dtw.macsch.com:~]
    10 >telnet organic-earth.com 25
    Trying 64.27.213.176...
    Connected to organic-earth.com (64.27.213.176).
    Escape character is '^]'.
    220 a.organic-earth.com ESMTP Postfix (Release-20010228) (Linux-Mandrake)
    HELO scientificappliance.com
    250 a.organic-earth.com

Ok. It seems to me if you could convince the fine folks at register.com
to point a.organic-earth.com to organic-earth.com you might be fine
(mail experts are welcome to interject). Another possibility is simply
to have your MX (mail exchanger) set to organic-earth.com. I leave it
to the truly clueful to tell you which of these is better, or if there
is another solution that makes sense.

On Wed, 2002-04-03 at 21:35, Bill wrote:
> Hi folks ... I am stumped and recognize that I need a little push in the
> right direction.
>
> I am trying to run a mail server (full tilt boogie) from my home for
myself,
> my wife and maybe some family members. Since Yahoo has generously agreed to
> charge me real money (American) for delivering my e-mail, and also since I
> want to get email at the same address as my web site (hosted at home),
I have
> embarked on the ultimate insanity ... running my own servers.
>
> Postfix is running, apparently. It passes the internal mail test offered at
> lhttp://www.mandrakeuser.org/docs/connect/cmail2.html but does not seem to
> handle internat mail too well.
>
> When I send emails addressed to bill@organic-earth.com, (we are up to "test
> 9" on the subject line) kmail acts like they left here just fine. But they
> never seem to arrive in my in-box nor do they seem to bounce.
>
> What (other than a clue) am I missing?
>
> Bill

----- End forwarded message -----



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