Sendmail basic configuration without using DNS

[michi79]

Hello,

Can anybody tell me which steps I've to do
to configure sendmail without DNS. I use
NIS instead. My smtp-server is a NT-box
which provides contact to the internet
regards
L. Wahl

[Stefan Farrelly]

If youre talking about the basic sendmail configuration on an HP server then you dont need to make any changes at all, just modify the /etc/nsswitch.conf file to include nis for host lookups so that when you try to send an email, eg;
echo test | mailx -s"subject" firstname.givenname@domain.com

sendmail can resolve the name youre trying to email to by looking it up in nis instead of dns. eg. the line in /etc/nsswitch.conf should look like;
hosts nis [NOTFOUND=continue] files

[Devbinder Singh Marway · Accepted solution]

in your sendmail.cf file , add the name of your NT server under DS heading i.e. DSntserver ( you may have to put in the full domain) i.e. DSnt.fred.com

Also check you can talk to your smtp NT server , by telnetting to port 25

telnet server 25 ( if you get a response and your sendmail.cf file is set)
also you can type in once connected to port 25
HELO dev
(you'll get ok prompt back)
MAIL from:(your server name e.g. unixbox)

RCPT TO:(who you want to send it to i.e. fred@abc.com)
DATA
354 Send data. End with CRLF.CRLF
(enter your message)
test message
.
250 OK

The recipient should receive the email. if you cannot connect to port 25 check sendmail is listening on this port ( /etc/services) and check whether the NT server is allow requests through.

HTP
DEV

[CHRIS_ANORUO]

Check this thread: http://my1.itrc.hp.com/cm/QuestionAnswer/1,1150,0xc35fc5ea0230d411ade80090279cd0f9,00.html

[michi79]

Hi All,

thanks for the tipps. The problem is stil
not solved. It is not the NT-Box. The example
with telnet to port 25 worked fine.
The pronlem is the UX-Box. In mail.log
I have the error message:
Name Server: NT-Box.FQDN : host name lookup
failure

I changed the /etc/nsswitch.conf as above
discribed. I can nslookup to the NT-Box
Why trys my UX-Box to use the NT-Box as
a Name-Server ???
regards
L. Wahl

[Kofi ARTHIABAH]

Wahl,

Lets try this again - since you are not using dns, make sure that you do not have a /etc/resolv.conf (this file lists the servers that will be your name server)

2. make sure that the IP address of your relay (ie. the NT box) is listed in your /etc/hosts file

3. Then confirm that your /etc/nsswitch.conf contains the line:

hosts: files [NOTFOUND=continue] nis

4. make sure that your /etc/mail/sendmail.cf file has a relay defined by the DS directive - (make sure that the name you specify on this directive is what you have defined in your /etc/hosts file for your NT box)

5. make sure that your /etc/mail/sendmail.cw contains ONLY localhost (or the hostname of your HPUX machine)

6. try restarting sendmail with /sbin/init.d/sendmail stop ; /sbin/init.d/sendmail start

good luck...

[michi79]

Thank you all,

sendmail is particulary running.
With: echo "test" | mailx -s "test" wahl@domain
I get a mail in the NT-Box. But there is no
sender and no subject and no message.
From the HP-UX box i get in mail.log the
following messages stat=Data format error
and DSN=data format error
Any ideas
regards
L. Wahl

[Kofi ARTHIABAH]

DSN stands for Delivery Status Notification - I believe it was added in Sendmail 8.8 and above - you can disable from sendmail by editing your /etc/mail/sendmail.cf and modifying the O PrivacyOptions=noreceipts (check the comments in the sendmail.cf file for more info) as well as /usr/share/doc/sendmail8*delta*txt for more info.

[P V Patel]

Hi,
First of all check /etc/nsswitch.conf. It should have entry for hosts and aliases. e.g.
hosts : files
aliases : files

Modify /etc/mail/sendmail.cf to change following lines:
Dj$w{the name of your domain}
DS{ip of relay host/relay host}

Run newaliases command

run following two commands:

/sbin/init.d/sendmail stop
/sbin/init.d/sendmail stop
Regards.
P V Patel

[michi79]

Hello,

thank you all so far. I have done all you
suggested. Also I' ve ugraded to sendmail
8.9.3 with PHNE_18979. I think I have another
problem that RELAYING is not possible.
sendmail -v username@domain return error
code 501 the adress of username@domain
ist not known to the NT-Mail server although
the user is the defined.
Any ideas ?

regards
L. Wahl

[michi79]

Hi,

now I'am on the point. My NT-Box only accepts
in the from Dialog username@domain. The HP-UX
box sends in FROM: username@HP-Box.domain
If I change the hostname of the HP-UX Box
for testing to only domain the mail is delivered local on the HP-UX box
regards
L. Wahl

[michi79]

Hi,

now I'am on the point. My NT-Box only accepts
in the from Dialog username@domain. The HP-UX
box sends in FROM: username@HP-Box.domain
If I change the hostname of the HP-UX Box
for testing to only domain the mail is delivered local on the HP-UX box
regards
L. Wahl

[michi79]

Hi,

now I'am on the point. My NT-Box only accepts
in the from Dialog username@domain. The HP-UX
box sends in FROM: username@HP-Box.domain
If I change the hostname of the HP-UX Box
for testing to only domain the mail is delivered local on the HP-UX box
regards
L. Wahl