Configuring sendmail with no DNS available

[Mohamed shamy]

Hello
I'm trying to configure the send mail process to use my exchange server but my system doesnt involve any DNS configured , i have tried to add a line in the macro DS and i have added the ip of the exchange server in the /etc/hosts , restated the process , but every time i try to send the mail i get the following error .

momsrv01:/ # sendmail -v mshamy.c@stc.com.sa < /etc/hosts
stc.com.sa: Name server timeout
mshamy.c@stc.com.sa... Transient parse error -- message queued for future delivery
mshamy.c@stc.com.sa... queued


can any one help .

best regards

[Court Campbell]

Two choices.

1. use DNS.
2. Try this:

http://www1.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000065255439

Good Luck.

[Steven E. Protter]

Shalom,

The sendmail DS feature will take IP addresses as well.

DS
[192.168.0.10]

in sendmail.cf where 192.168.0.10 is the ip address of the exchange server (or smtp relay system) is sufficient to get mail off the HP-Ux box without any DNS resolution at all.

I generally like to use the ip address format instead of the DShostname format so mail gets delivered during short term network/dns failures.

SEP

[Emil Velez]

I find sendmail works just fine if you put a fully qualified hostname in the /etc/hosts file as a alias for the local host system. That seems to work.

[Patrick Wallek]

A couple of other things to check:

1) Do you have a /etc/resolv.conf file? If so, and you are NOT using DNS, then rename it to /etc/resolv.conf.old or something.

2) Check to see if you have a /etc/nsswitch.conf file. If so, look in it for the hosts: line and see how it is configured. If you are not using DNS then it should look like:

hosts: files

Try these and see how your sendmail works.

[Patrick Wallek]

Take a look at Bill Hassel's response in this thread for some good info as well:

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=1108641