RE: Outgoing E-mails Problem

  • From: "Simon Butler" <simon@xxxxxxxxxxxx>
  • To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
  • Date: Wed, 5 Oct 2005 12:56:10 +0100

You are on a black list. It looks your domain has got on to the
Blacklist rather than the IP address. 
Try putting both the domain name and your public IP address in to this
web site and see if you are listed.
If you are listed you will have to check the web site of  the blacklist
to see how about getting de-listed. 
As a short term measure, configure an SMTP Connector to route email
through your ISP's SMTP server.
Simon Butler
MCP, MCSA, MVP:Exchange
Senior Systems Administrator
Amset IT Solutions Ltd.

e: simon@xxxxxxxxxxxx


From: Mohammed Naimathullah Siddiqui [mailto:mailnaimathullah@xxxxxxxxx]

Sent: 05 October 2005 11:53
To: [ExchangeList]
Subject: [exchangelist] Outgoing E-mails Problem



I hope all are fine, we have exchange 2003 DC and also exchange 2003
server and we are using GFI mail essential for downloading e-mails form
our hosting company. We have configured two domain names in it
and it was working fine 2 months, but now we are facing the
problem in sending e-mail when we send any e-mail to hotmail,yahoo and
gmail it is going but others it is not going. After staying in the SMTP
queue e-mails are returning back with this message.


Your message did not reach some or all of the intended recipients.


      Subject:             FW: API-570 Marks

      Sent:                 10/3/2005 12:29 PM


The following recipient(s) could not be reached:


      '123@xxxxxxxxxx' on 10/3/2005 12:29 PM

            There was a SMTP communication problem with the recipient's
email server.  Please contact your system administrator.

            < #5.5.0 smtp;550 Denied by policy:
Sender is listed on DNS-based RBL.>


Can help me in this problem because now every e-mail is returning with
this message.






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