[ILUG] null client configuration for sendmail

[Walter Faleiro]

Kindly ignore the mistyped domain seqxxx. its example.

Also when you sent mails to badger it shoud go to badger at example.com and not
to badger at gonzo.example.com

Regards
--Walter

On 8/30/06, Walter Faleiro <curtorkar at gmail.com> wrote:
>
> Hi Badge
>
>
> Note the difference
>
> Connecting from a host mankind.
>
>
>
>  mail -v walter
> Subject: test mail
> .
> Cc:
> Null message body; hope that's ok
> walter... Connecting to [ 127.0.0.1] via relay...
>
>
> And connecting from a working host splendor
>
>  mail -v walter
> Subject: test mail
> Cc:
> Null message body; hope that's ok
> walter... Connecting to server02.sequencedesign.com. via relay...
>
>
> How do I make the first one connect to server02 via relay instead of
> connecting to 127.0.0.1
>
> Regards,
> --Walter
>
>
>
>
> On 8/30/06, Badger <badger at scattermail.com> wrote:
>
> > On Wed, Aug 30, 2006 at 07:08:52PM +0530, Walter Faleiro wrote:
> > > Hi Badger,
> > >
> > > Following is the info you need
> > >
> > >
> > > [root at fedora ~]# rpm -qa | grep sendmail
> > > sendmail-cf-8.13.4-2
> > > sendmail-8.13.4-2
> > > [root at fedora ~]# cat /etc/mail/sendmail.mc
> > > divert(-1)dnl
> > > dnl #
> > > dnl # This is the sendmail macro config file for m4. If you make
> > changes to
> > > dnl # /etc/mail/sendmail.mc, you will need to regenerate the
> > > dnl # /etc/mail/sendmail.cf file by confirming that the sendmail-cf
> > package
> > > is
> > > dnl # installed and then performing a
> > > dnl #
> > > dnl #     make -C /etc/mail
> > > dnl #
> > > include(`/usr/share/sendmail-cf/m4/cf.m4')dnl
> > > VERSIONID(`Nullclient for Linux')dnl
> > > OSTYPE(`linux')dnl
> > > DOMAIN(`generic')dnl
> > > FEATURE(`nullclient',`example.com')dnl
> > > undefine(`ALIAS_FILE')dnl
> > >
> > > [root at fedora ~]# cat /etc/hosts
> > > # Do not remove the following line, or various programs
> > > # that require network functionality will fail.
> > > 127.0.0.1 localhost.localdomain localhost
> > > 172.16.20.60    fedora.example.com       fedora
> > >
> > >
> > > And yes,
> > > I do type make -C /etc/mail.
> > > Service sendmail restart.
> > >
> > > My distribution is Fedora Core4. I think it should not be that
> > different for
> > > FC5, so you can list the steps for me to try out.
> > >
> > >
> > > Regards,
> > > --Walter
> >
> >
> > Walter, I just took the sendmail.mc that you posted and ran it on my
> > machine (changing the `example.com', to `gonzo.example.com'). It worked
> > without a problem. As soon as I restarted the server, and mail that I
> > sent to badger went to badger at gonzo.example.com instead of to the local
> > account.
> >
> > I will go through the steps I took earlier to get sendmail up and
> > working in the first place, but I can't see that there is anything in
> > there that will help you.
> >
> > You don't mention how DNS is set up for 'example.com'. Perhaps you could
> > check the following:
> > $ cat /etc/resolv.conf
> > $ dig +short example.com a       # From fedora.example.com
> > $ dig +short example.com mx      # From fedora.example.com
> >
> > I don't suppose there are any clues in the mail log file
> > /var/log/maillog?
> >
> > The steps I carried out earlier to get this up and working on FC5 are
> > going to sound primative in comparison to what you have done:
> >
> > 1. Upgrade sendmail package and install the sendmail-cf package:
> >     $ yum upgrade sendmail
> >     $ yum install sendmail
> >
> > 2. Copy the new sendmail.mc from /etc/mail/sendmail.mc.rpmnew into place
> >    as /etc/mail/sendmail.mc and edit it as follows:
> >     (i)  comment out all MAILER macros
> >     (ii) add "FEATURE(`nullclient', `gonzo.example.com')dnl" to end of
> >          file
> >
> > 3. do 'make -C /etc/mail'
> >
> > 4. Restart server
> >
> > 5. Test the new configuration as user badger, using /bin/mail as
> >    follows:
> >       $ echo "hello world" | mail -s test badger
> >
> > 6. The result is that mail is now sent to account of badger on
> >    gonzo.example.com, not the local badger account.
> >
> > Not much point in me posting the sendmail.mc that I used then since the
> > one you posted earlier works fine on my machine (and the one I used is
> > 175 lines long and is full of crap).
> >
> > I don't have an MX record for gonzo.example.com, but I do have an A
> > record, so:
> > $ dig +short gonzo.example.com a
> > 172.16.12.14
> >
> > Any further thoughts?
> >
> > - badge
> >
> > --
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>
>