[Linux-users] Sendmail upgrade

[Jay Nugent]

Greetings,

On Wed, 22 Aug 2007, Stuart Biggerstaff wrote:

> In one of those "make a bunch of changes to a server then quit"
> situations, we have a server in our DMZ that is supposed to be sending
> mail to our regular mailserver inside the LAN, but isn't after an OS
> upgrade from an older RHEL to CentOS 5.0.  If I add my desktop's VLAN to
> Relay Domains, I can bounce mail from there to the mailserver with SMTP,
> but mail originating on the server itself isn't leaving.  I suspect we
> have run afoul a default restriction in a newer version of Sendmail or
> one that is a recent default instituted by Redhat.  We've been looking
> through documentation and searching the web, but so far nothing has
> helped--so I'm thinking we are missing something basic.
> 
> Anyone have a suggestion for the first or second things to look at?

   Sendmail usually comes out of the box only recognizing the loopback 
interface, and thus, only users on that same box can exchange email.  
You'll need to get sendmail to recognize the ethernet port(s) as well in 
order for it to talk to the outside world.

   You'll have to Google around and look for the current "fix".  Been 
several years (7+) since I've had to mess with sendmail on Linux.

   I gave up on Linux and have moved my servers over to FreeBSD which 
*does NOT* break things to protect unuducated users.  My hair is growing 
back and my ulcer is much much better ;-)   Don't fret, I still use Linux 
for my workstations, so I haven't given up completely :)

      --- Jay
             
"Getting rid of terrorism is like getting rid of dandruff.  It cannot
 be done completely no matter how hard you try." -- Gore Vidal
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