[CS-FSLUG] Sendmail with multiple domains

[Doug Coats]

Thanks for the info.

I got it working last night but I am still not confident exactly what I was
doing wrong.  I had already implemented the steps you suggested except for
#2 with no joy.  I tried that with the same results.  I stopped and
restarted Sendmail after many changes just to have the email rejected again.

I then noticed that the position of the ` and the ' seemed to be misplaced
in line you wanted me to include in the mc file.  You had:

define(`confCW_FILE', `-o MAIL_SETTINGS_DIR`'local-host-names')dnl

As far as I understand the ` is used as and opening quote the the ' as a
closing quote.  Is that right?  I changed it to:

define(`confCW_FILE', `-o MAIL_SETTINGS_DIR' `local-host-names')dnl

Stopped and Started sendmail with still no luck.  I then looked on another
machine that has two Domains that work for emailing either and that line is
not included in the mc.  I wonder if the newest version of Sendmail picks up
the "local-host-name" even without that line in the mc.

I then restarted my server out of desperation and now it works.

I am very happy about it working but not satisfied that I could duplicate
the results.  I guess I will have to remove all of my changes and start over
and document which ones were necessary to complete the setup.

I did set up the virtusertable but I don't know if I actually need it.
Could you explain further what that is actually for and when you would need
it and when you do not?

Thanks again - God Bless,

Doug

-----Original Message-----
From: Christiansource-bounces at ofb.biz
[mailto:Christiansource-bounces at ofb.biz]On Behalf Of Frank Bax
Sent: Tuesday, October 26, 2004 10:43 AM
To: Christiansource at ofb.biz
Subject: Re: [CS-FSLUG] Sendmail with multiple domains


At 11:03 AM 10/26/04, Doug Coats wrote:
>I have tried a number of things with the same result - Sendmail denies
>relaying for the second domain.  All mail is returned to sender.

Is your machine to relay email to the "real" mail server, or is your
machine the final destination?

Here's what I've got on my server (dozen domains), for hosting email:
1) server is listed as primary MX for domain on nameserver.
2) Make sure your mc file has this line:
define(`confCW_FILE', `-o MAIL_SETTINGS_DIR`'local-host-names')dnl
3) local-host-names will contain one per domain for which you accept mail.
4) kill -HUP [sendmail pid] required after changes
5) Are you using virtusertable?  It needs this line in mc file:
FEATURE(`virtusertable',`hash /etc/mail/virtusertable')
6)  After making changes, rebuild the database:
         cd /etc/mail ; cat virtusertable | makemap hash virtusertable

Over the summer, I installed a new server and the old server was acting as
relay to new server while DNS changes propagated:
1) Update MX records - make new server primary, old server secondary.
2) configure new server as above.
3) Entry was removed from local-host-names on old server.
4) Added this line to mc old old server, rebuild cf:
FEATURE(`relay_based_on_MX')
5) send HUP to sendmail process.

Frank


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