[svlug] Problems with mailserver spamming itself due to loop

[Mark]

Hi Alvin,

We use Fedora/Redhat sendmail 8.13.8-2 (came with Core 6).

I checked /etc/mail/local-host-names, and I do have the entries you mentioned in there.

What else could I check for?

MARK

 

> -----Original Message-----
> From: root [mailto:root at mail.Linux-Consulting.com] 
> Sent: Monday, June 02, 2008 3:00 PM
> To: Mark
> Cc: Alvin Oga
> Subject: Re: [svlug] Problems with mailserver spamming itself 
> due to loop
> 
> 
> hi ya mark
> 
> On Mon, Jun 02, 2008 at 02:36:47PM -0700, Mark wrote:
> > No, the headers are real.
> > The problem stops if I block port 25 for IP 127.0.0.1 in iptables.
> > So it is really the server looping with itself...
>  
> which MTA are you using ??
> where did you get the mta programs...
> 	- always use the originals from sendmail.org, 
> postfix.org, exim.org
> 
> 	- each distro fucks up the mta to suit their needs
> 	( aka to generate phone calls for support fees )
> 
> different mta would imply different solutions or places to look
> 
> 	- your mail server needs to be told to "keep" the mail 
> it is receiving
> 	instead of trying to pass it on
> 
> sendmail:  you need to add localhost to local-host-names
> 	#
> 	localhost
> 	localhost.localdomain
> 	
> postfix:   you need to double check /etc/postfix/access for localhost
> 	127.0.0.1       OK
> 
> 	# by default we allow relaying from localhost...
> 	localhost.localdomain           OK
> 	localhost                       OK
> 
> exim ..... nobody can pay me enough $$$ to go fix it
> 
> c ya
> alvin
>