Dear all,

I come back to everybody cause I don't find an explicit how to do this!

In our internal network, I've created an email server with Postfix and
Dovecot. (Just for internal domain, no needed to go outside)

But I've some server which use linux too. All are on CentOS 5.5.

I would like to configure these servers to use my internal mail server for send email, and not configure sendmail or postfix on each server.

What I've to do exactly on each servers to use it?

I search on the web but I don't find something very explicit…

Thanks in advance

Mouglou

well sendmail should already be configured fine on the boxes to send mail out. you can configure it to use that server as a smart host if you wish, but you should already be able to send email to the domain that that supports given a suitable mx record being available. Note that you say you don't want to run sendmail etc, but the configuration you'd do IS to use sendmail or an equivalent. SMTP servers can be very flexible in terms of their remit, and running sendmail doesn't mean it's a big scary thing. Have a look on your servers, is sendmail not already there and running?

Thanks for your fast answear!
Yes I configured my SMTP server with POSTFIX but other linux server could be configure with Sendmail, its not a problem.

So I look on a server and sendmail is on, but the line SMART_HOST is not configure with my internal domain.
If I change this with my internal domain, it will works?
What I've to type as command to register the news settings?

I use a howto from linuxmail.org to configure my SMTP server with Postfix/Dovecot and the SMTP Authentication.
Others settings need to be change?

Thanks,
Mouglou

so if you wan tto shift mail off a server to a smart relay and do fine control there, then it's the SMART_HOST directive as you are aware. I would set that to a suitable hostname (which I would configure as a CNAME in my internal DNS (assuming there IS an internal DNS...) e.g.

in the sendmail.mc and restart it.