[cobalt-developers] Fw: Undelivered Mail Returned to Sender

["SarrCom.com - Reginald" <admin@xxxxxxxxxxx>]

By the way everyone: there is an excellent tool to check the status of a domain at http://www.checkdns.net

I ran a check on my domain and everything seemed to be OK:
(email addresses modified to NOSPAM)

  Domain danzig.org has only one mail-server 
  Checking mail server (PRI=0) mail.danzig.org [80.65.131.2] 
  Mail server mail.danzig.org [80.65.131.2] answers on port 25 
  <<< 220 sarrcom1.asp.be ESMTP Sendmail 8.11.6/8.11.6; Wed, 16 Oct 2002 13:45:15 +0200 
  >>> HELO checkdns.uniplace.com 
  <<< 250 sarrcom1.asp.be Hello [212.117.192.42], pleased to meet you 
  >>> MAIL FROM: <dnscheck@xxxxxxxxxxx> 
  <<< 250 2.1.0 <dnscheck@xxxxxxxxxxx>... Sender ok 
  >>> RCPT TO: <postmaster@xxxxxxxxxxx> 
  <<< 550 5.7.1 <postmaster@xxxxxxxxxxx>... Relaying denied. IP name lookup failed [212.117.192.42] 
  Probably mail server does not accept mail for 'danzig.org' and recognizes this as relay attempt. 
  Some of your MX do not work properly 


Gerald wrote:

: check your mail first!
: pop your mail before you send it....
: do you have popB4Smtp ON?

I did that. I remember that you first have to check mail before you can send mail. Any other suggestions?
Thanks!
Reginald


----- Original Message ----- 
From: "SarrCom.com - Reginald"
To: "Cobalt Developers list" <cobalt-developers@xxxxxxxxxxxxxxx>
Sent: Wednesday, October 16, 2002 1:34 AM
Subject: Undelivered Mail Returned to Sender


Just added a site on a RaQ 550. Tried to send email to that domain but the message failed. The error message was:

The Postfix program

<dan@xxxxxxxxxx>: host DOMAIN.org[IP.IP.IP.IP] said: 550 5.7.1
    <dan@xxxxxxxxxx>... Relaying denied.  Please check your mail first or
    restart your mail session.

I had this problem before but I just need a small hint to remind me what's wrong and what I have to do to fix this.