SUMMARY: SMI-8.6 , sendmail.cf

From: JOSEPH AAJ Chackompally (AAJ@necsin.nec.com.sg)
Date: Wed Apr 15 1998 - 21:07:25 CDT


Thanks to all the Sun Managers who responded with their valuable
suggestions. I ended up upgrading my sendmail.
The Summary is too Long

My Question :

Dear Sun Managers,

I have a Sun machine running SMI-8.6
I am having lot of problems with my sendmail, with the sendmail.cf I have.
Tried lot of adjustments according to what I understood from the sun
managers archives, I still have problems.
Can some kind soul send me sendmail.cf for SMI-8.6, which REALLY
makes sending and receiving mails to the Internet possible.

Thanks and Regards
Aaj

Answers/Suggestions

...........................................................................................................
Claus Assmann <ca@informatik.uni-kiel.de> Wrote :

Here is an excellent info from
Paul Pomes - <ppomes@Qualcomm.com>

! Here's a file I put together for local use that appears close to your
! situation. Comments welcome.
!
! /pbp
! ====
!
! How to Fix a Cranky SUN Mail System.
!
!
! 1) Kill the existing sendmail daemon process.
!
! ps waux | grep sendmail
! kill <pid> where <pid> is the process id of the daemon.

[This step is only required prior to SunOS 5.5 (aka Solaris 2.5)]
! 2) Replace the default sendmail executable with the SUN-supplied
version
! that understands use of the DNS. Zap any frozen config file present.
!
! cd /usr/lib
! cp sendmail sendmail.nomx
! chmod 755 sendmail.nomx
! cp sendmail.mx sendmail
! chmod 4511 sendmail
! rm -f /usr/lib/sendmail.fc /etc/sendmail.fc /etc/mail/sendmail.fc

! 3) Establish a /etc/resolv.conf file to direct DNS queries to a server.
! The values of "domain" and the "nameserver" lines depends critically
! on where you are. At the University of Illinois the value of domain
! is typically your department or office name combined with "uiuc.edu".
! Long names, e.g., Personnel Services Office, are typically
abbreviated
! (pso.uiuc.edu). Examples: math.uiuc.edu, life.uiuc.edu, ncsa.uiuc.edu.
!
! Some institutions have a one domain fits all name. An example of
! this is the US Army Corps of Engineers, Construction Engineering
! Research Lab locally known as US Army CERL. Army policy
specifies
! that domain names must use their official acronym with the "army.mil"
! domain. So CERL's domain name is "cecer.army.mil". Adding a fourth
! domain to distinguish internal departments and divisions would have
! made the names overly long. Thus all CERL hosts are named
! foo.cecer.army.mil.
!
! Selecting nameservers must be done in consultation with your local
! network expert. At the University of Illinois (and ONLY here please)
! the following values can be used. Let's repeat that - only University
! of Illinois hosts should be using our nameservers.
!
! domain foo.uiuc.edu (replace foo with your official
domain)
! nameserver 128.174.5.59
! nameserver 128.174.5.50
! nameserver 128.174.5.58
!
! At US Army CERL, use the following:
!
! domain cecer.army.mil
! nameserver 129.229.20.254
! nameserver 129.229.1.5
!
! N.B., SUN's resolver code is based on BIND v4.8.1 and suffers from
several
! problems. Chief among those is zero fault tolerance. If the first listed
! nameserver is unreachable or dead, the resolver won't try any of the
! subsequently listed servers. Re-compiling both sendmail and
libresolv.a
! from modern sources is the only fix for this.

[SunOS 5.x: make sure you have dns in the hosts line in
/etc/nsswitch.conf]

! 4) Copy the "main" sendmail.cf base file to sendmail.cf.
! Under SUN-OS 4.X use
!
! cp /usr/lib/sendmail.main.cf /etc/sendmail.cf
!
! Under SUN-OS 5.X use
!
! cd /etc/mail
! cp main.cf sendmail.cf
!
!
! Now that the base work has been done you have a choice: death or
chi-chi.
! No, that's another sick joke. Let's stick to SUNs and retain what shreds
! of dignity we can. Onward.
!
! The next set of steps involve changes to the sendmail.cf file. Invoke the
! editor of your choice on /etc/sendmail.cf or /etc/mail/sendmail.cf.
!
! 5) Change the value of the $j greeting macro. Macros are defined with
! lines beginning with 'D'. Thus the $j macro is defined on a line
! beginning with 'Dj'. Change sendmail.cf (nee main.cf) to look like
!
! # my official hostname
! # You have two choices here. If you want the gateway machine to
identify
! # itself as the DOMAIN, use this line:
! #Dj$m
! # If you want the gateway machine to appear to be INSIDE the domain,
use:
! #Dj$w.$m
! # Unless you are using sendmail.mx (or have a fully-qualified
hostname), use:
! Dj$w
!
! (Comment out the Dj$m entry and enable the Dj$w entry.)
!
! 6) Select the proper mailer for forwarding to a smarter relay. In the
! case of a site connected to the Internet, this is the "ddn" mailer.
! Change to:
!
! # major relay mailer - typical choice is "ddn" if you are on the
! # Defense Data Network (e.g. Arpanet or Milnet)
! #DMsmartuucp
! DMddn
!
! 7) Select the smarter relay to handle messages to unknown
destinations.
! This MUST be selected on a per-site basis.
!
! At the University of Illinois *ONLY*
!
! # major relay host: use the $M mailer to send mail to other domains
! DRux1.cso.uiuc.edu
! CRux1.cso.uiuc.edu
!
! At the US Army CERL *ONLY*
!
! # major relay host: use the $M mailer to send mail to other domains
! DRmax.cecer.army.mil
! CRmax.cecer.army.mil
!
! 8) Configure your domain names. Replace the foo.bar.uiuc.edu names
below
! with your host's FQDN.
!
! #################################################
! #
! # General configuration information
! ...
! # Example: (bogus examples, ignore)
! # DmCS.Podunk.EDU
! # Cm cs cs.Podunk.EDU
! Dwfoo.bar.uiuc.edu
! Dmfoo.bar.uiuc.edu
!
! 9) Change the ddn mailer rules in ruleset 0 according to the comments
there.
! Ruleset 0 is labelled by a line containing only "S0". About 40 lines
! further down are the following rulesets.
!
! # Pass other valid names up the ladder to our forwarder
! #R$*<@$*.$=T>$* $#$M $@$R
$:$1<@$2.$3>$4 user@domain.known
!
! # Replace following with above to only forward "known" top-level
domains
! #R$*<@$*.$+>$* $#$M $@$R
$:$1<@$2.$3>$4 user@any.domain
!
! # if you are on the DDN, then comment-out both of the the lines above
! # and use the following instead:
! R$*<@$*.$+>$* $#ddn $@ $2.$3
$:$1<@$2.$3>$4 user@any.domain
!
! Follow the comments and comment out the second rule that forwards
! only "known" domains and enable the following rule that uses the
"ddn"
! mailer.
!
! Write the sendmail.cf file back out and leave the editor. Now test the
! changes by using sendmail in test mode.
!
! 10) Test address recognition. Invoke sendmail in address test mode:
!
! /usr/lib/sendmail -bt
!
! Run the following address forms through one at a time. The leading 0
! is the starting ruleset. Each address should resolve to "user" using
! the "local" mailer. Replace "foo" and "bar.uiuc.edu" with the name
! of your host and domain.
!
! 0 user
! 0 user@foo
! 0 user@foo.bar.uiuc.edu
!
! 11) Verify out-going addresses are correct. Use the -v option to
Berkeley
! mail to check that the return addresses are correct. If -v doesn't
! work with your mailer, use sendmail direct.
!
! Mail -v nobody@ucbvax.berkeley.edu < /dev/null
! or
! /usr/lib/sendmail -v nobody@ucbvax.berkeley.edu < /dev/null
[ucbvax.berkeley.edu does no longer exist, try something else,
e.g., nobody@informatik.uni-kiel.de]
!
! 12) Fire up sendmail in daemon mode.
!
! /usr/lib/sendmail -bd -q1h
!
! 13) Test in-bound mail. From another host, verify that mail sent to a
! user that has no forwarding set up, either via /etc/aliases or
! .forward file, actually arrives. Telnet to the SMTP port and verify
! that the greeting message uses the fully qualified domain name.
!
! telnet foo.bar.uiuc.edu 25
!
! quit
! --
.....................................................................................................................

Chris Marble <cmarble@orion.ac.hmc.edu> Wrote :

I've got a great set of
instructions on compiling, installing and configuring sendmail.8.8.8
on Solaris 2.5.1 and 2.6. Check out the web page I set up at:
  http://www3.hmc.edu/docs/coolstuff/sendmail
.....................................................................................................................

That's a very old version of sendmail which has tons of security holes in
   it. Your safest bet is to either upgrade to sendmail-v8 plus the latest
   named/bind release, or (much better) dump sendmail completely and
use
   something like qmail.

   The M4 macros in the sendmail source code make it very easy to
generate
   most sendmail.cf files.

     QMail source plus docs:
          http://www.qmail.org/

     Sendmail source code:
          ftp://ftp.cs.berkeley.edu/pub/sendmail

     BIND source code:
          ftp://ftp.isc.org/isc/bind/src/8.1.1/bind-contrib.tar.gz
          ftp://ftp.isc.org/isc/bind/src/8.1.1/bind-doc.tar.gz
          ftp://ftp.isc.org/isc/bind/src/8.1.1/bind-src.tar.gz

     Sendmail compiled binaries:
          http://smc.vnet.net/solaris_2.5_nof.html

....................................................................................................................
"James Ford" <James.Ford@seebeck.ua.edu> Wrote :

www.sendmail.org - get sendmail v8.8.8. The sendmail that comes with
sun (v8.6) does not stamp the incoming IP address of mail. Thus your
mailer could be used to spam anonymously.

The newer versions of sendmail (8.8.9) have anti-relaying code built
in by default. With 8.8.8 you need to get hacks from

http://www.informatik.uni-kiel.de/%7Eca/email/check.html
.....................................................................................................................
"Ameet Chaubal" <achaubal@admin.tavsnet.com> Wrote :

First of all you should get new sendmail 8.8.8 from www.sendmail.org
Use the m4 macros to create the sendmail.cf file.
 here is a vanilla m4 file

include(`../m4/cf.m4')
OSTYPE(`solaris2.ml')
MAILER(local)
MAILER(smtp)

this is would generate a generic sendmail.cf for you
.....................................................................................................................

The other people who suggested about V8.8.8 and offered their help
were

Kristian Forde <Kristian.Forde@hit.no>
Chris Liljenstolpe <cds@mcmurdo.gov>
Ravi Reddy B M <ravi@axes-mach01.dsccc.com>
Antonio Figueiredo <antonio@dca.fee.unicamp.br>
MARK SAYER <MSAYER@cuscal.com.au>

Thanks

Aaj



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