Mailinglist Archive: opensuse-security (564 mails)

< Previous Next >
Re: [suse-security] is it a spam relay?
  • From: Frank Naumann <frank@xxxxxxxxxxxxxxx>
  • Date: Fri, 19 Jan 2001 17:16:22 +0100
  • Message-id: <20010119171622.A8642@xxxxxxxxxxxxxxx>

On Fri, Jan 19, 2001 at 04:44:53PM +0100, webmaster wrote:
> Please, help me understand this log:
> Jan 19 06:51:06 mand sendmail[2353]: GAA02353: ruleset=check_mail,
> arg1=<nobody@xxxxxxxxxxxxxxxxx>, relay=[], reject=501
> <nobody@xxxxxxxxxxxxxxxxx>... Sender domain must exist
the name can't be resolved (no reverse
resolution). Your sendmail daemon doesn't accept mails from such
senders. Probably it is a problem in a missconfigured MTA or MUA at
server1. This host is not listet in the DNS Database at so
the owner of this machine should set the DM string in
/etc/sendmail.cfto to force masquerading his hostname.

I don't think it is a span relay.

P.S. Sorry for my bad english


Hi! I'm the infamous .signature virus!
Copy me into your ~/.signature to help me spread!

< Previous Next >
This Thread