topic Re: Sendmail config problem in Operating System - Linux

Sendmail config problem

Nicolas_17 — Wed, 20 Jul 2005 12:12:21 GMT

Hey boys and girls,

I have a little trouble configuring sendmail like i want it. From this machine, i would like to be able to send mails to any user/machine/domain.

Presently, i can send mail to local users:
# mailx -s 'testing' nicolas < message

I can also send mail to users on other *nix machines in my lan, in the same domain or not:
# mailx -s 'testing' nicolas@host.otherdomain.lan < message

What i cannot do, is send mail to an outside email account that goes through our exchange server:
# mailx -s 'testing' nicolas@outside.com < message

I'm not too sure which parameter fixes this. If I configure SMART_HOST as our exchange server, then I can't send any mail to any user accounts on *nix machines because exchange doesn't know these users/machines. So how do I tell sendmail to discriminate in function of the domain name?

I thought I had it with the /etc/mail/access file by tweaking it to RELAY only the domains inside our lan; then I tried the mailertable to specify the outside.com messages should be routed to our exchange server. No luck.
I attached my sendmail.mc, along with access and mailertable files.

Thanks.

Re: Sendmail config problem

Ivan Ferreira — Wed, 20 Jul 2005 15:48:23 GMT

When you configure a SMART_HOST, only mail that cannot be directly delivered should go to this host, so, it seems that you have a DNS problem.

The /etc/mail/local-host-names should contain the domain/s name/s for the domains that you want to accept mail, and the DNS should resolve the MX resource record properly to the host.

Re: Sendmail config problem

Vipulinux — Thu, 21 Jul 2005 01:22:10 GMT

Hi

Try using the sendmail command instead of mail command:
sendmail -f vaildname@yourdomain.com touser@userdomain.com < yourmessege.txt

Cheers
Vipul

Re: Sendmail config problem

Bejoy C Alias — Thu, 21 Jul 2005 04:03:45 GMT

For ur local domains u put an entry in the mailertable to route those mails to that particular domains and set the smart_host to ur exchange server . This will deliver the mails in ur local domains to the local server or to the other *nix machines using the mailertable , all the mails which are not included in these two will be forwarded to the exchange server . Ur exchange server should be configured to accept relaying from ur local linux mail server . There is no need to edit access file .

Re: Sendmail config problem

Nicolas_17 — Thu, 21 Jul 2005 07:15:04 GMT

Ok, i set the SMART_HOST parameter to our exchanger server and I can send out mail.
But now, I can't send anything to other *nix systems.

Ivan, looks like you were right about a DNS issue. That's fixed now.

"The /etc/mail/local-host-names should contain the domain/s name/s for the domains that you want to accept mail"

So I put in local-host-names the domain name from which this server can receive, or to which it can send, or both?

Bejoy, how do I set the mailertable if I have 5 or 6 *nix systems in the same domain?

Thanks again guys, for your very appreciated help.

Re: Sendmail config problem

Nicolas_17 — Thu, 21 Jul 2005 09:06:46 GMT

Ok, i got it!

I'm going to leave to thread open a little longer though, cause i know i'm bound to have problems as soon as i start tackling procmail...in about 15 minutes...

;-)

Re: Sendmail config problem

Bejoy C Alias — Thu, 21 Jul 2005 21:01:09 GMT

For setting the mailertable , suppose u have 3 unix machines abc.unix.com , bcd.unix.com , cde.unix.com . If ur email addersses for these domains are with their full domain names ( like test@abc.unix.com , hi@bcd.unix.com etc. ) then u can simply put
abc.unix.comsmtp:abc.unix.com
bcd.unix.comsmtp:bcd.unix.com
cde.unix.comsmtp:cde.unix.com
in ur mailertable where means u should press the tab key in ur kbd. If ur email's domain is common ( like unix.com ) , then u need to modify ur aliase database to reflect their corresponding domains ( like
testtest@abc.unix.com
hihi@bcd.unix.com )

Re: Sendmail config problem

Nicolas_17 — Tue, 26 Jul 2005 11:00:01 GMT

Thx Bejoy, i got that working now...

I'm having trouble creating the procmail recipes that I want though.

I want to filter everything destined for nicolas@abc.unix.com to a folder, say /home/nicolas.

So i have this recipe:

:0:
* ^TOnicolas@abc.unix.com
/home/nicolas/

That doesn't work though. Any ideas?

Re: Sendmail config problem

Bejoy C Alias — Tue, 26 Jul 2005 22:11:09 GMT

I dont have much idea about procmail , but in sendmail u can simply add the file name to the alias file to redirect or append the mails destined for a specific user like this
test@abc.unix.com:actual@test.com, /file-name
This will append a copy to the specified filename , if u remove the actual alias, it will only append to the file

Re: Sendmail config problem

Stuart Browne — Tue, 26 Jul 2005 23:12:55 GMT

I think you want:

:0
* ^To:.*nicolas@abc.unix.com
/home/nicolas/foldername

Re: Sendmail config problem

Nicolas_17 — Mon, 26 Sep 2005 09:15:30 GMT

Thanks guys,I got everything I wanted working, and sorry for leaving the post open for so long.