asked on

Linux Mail/Web Server

I have recently been tasked with forwarding email from a sendmail server to an internal relay (Exchange).

I need to know the following:

1) How do i tell what email sevrer i am running? I believe it to be sendmail
2) If it is sendmail how to I make sendmail relay to a smarthost? (Unauthenctiated is fine, as this is an internal relay only).
3) We are running, Kernel 2.6.18-128.el5 (SMP Edition).
4) Sorry for the stupid questions

Thanks,

Robert

Tim Phillips

To check for Sendmail:
ps aux | grep sendmail

To forward e-mail:
Edit: /etc/mail/access

Put your Exchange IP and in there with "RELAY" at the end
-ie "192.168.0.37 RELAY"

Put in the domain to relay as well.

castellansolutions

ASKER

this sendmail server has both WWW and SMTP running. I need this sendmail server o send all email to the Exchange Server.

The exhcange sevrer is on the edge of the network and not the send mail server. It looks to me like your command says "Sendmail accept email from an exchange server and relay it".

Thats not what i need.

Tim Phillips

No, putting in the relay for Exchange ON the Linux server allows Exchange to receive the e-mail from Linux. Sendmail forward to Exchange.

castellansolutions

ASKER

THis is what i am finding:

http://www.linuxquestions.org/questions/linux-general-1/smart_host-configuration-in-sendmail-mc-121518/

Tim Phillips

I think this is more of what you want: http://www.gaztronics.net/howtos/sendmail_to_exchange.php

castellansolutions

ASKER

THis is not correct: "outbound SMTP "Smart Host" for Exchange" Exchange will not send any mail through this sendmail server ever.

If you check my link i think that better explains what i want sendmail to do.

gheist

1) it must be sendmail
2) just change it to exim - it is one line config there
3) You are running RedHat Linux 5.3, and since yout enterprise never cared i trust it is out of support too
4) no problem

I'd suggest you go on with (freely) supported oracle linux 6.5 or centos 6.5 and builtin postfix (i leave to your excersize locating main.cf file and relayhost line in it....)

castellansolutions

ASKER

unfortauately i cannot make any changes of the sort. I am going to try the other set of directions that i found.

Any ideas on those?

gheist

m4 is preferred way (and sendmail.cf is not documented in last 10 years)
Here is some description

ASKER CERTIFIED SOLUTION

Sandy

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

castellansolutions

ASKER

Sandy,

Thanks for the post. You have provided the confirmation for what i need to do. I was starting to think that i couldn't do this relay project of mine.

castellansolutions

ASKER

Sandy,

Here is the error I get when I try the directions provided:

[root@server ~]# m4 /etc/mail/sendmail.mc > /etc/mail/sendmail.cf

/etc/mail/sendmail.mc:10: m4: cannot open `/usr/share/sendmail-cf/m4/cf.m4': No such file or directory

error is that second bit

Can you advise....

Thanks

Sandy

Yes sure,,,

it seems like you don't have sendmail-cf installed in your system.. First install it and then use it

#yum -y install sendmail sendmail-cf procmail mutt m4

TY/SA

castellansolutions

ASKER

WHat is the difference between sendmail and sendmail-cf? I know that we do have sendmail itself installed on the system

gheist

sendmail-cf are configuration templates to generate sendmail.cf using m4

castellansolutions

ASKER

Ok. And by installing the package we wont break our existing sendmail setup correct?

gheist

No, it is configuration templates to build new sendmail.cf