BlkKnight

Hi

I'm having problems sending some mail to some reciepiants

I'm getting the bounce:

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

Subject: FW: Proforma invoice 198352
Sent: 03/03/2009 16:36

The following recipient(s) could not be reached:

barratt@fitness-in-XXXX.com on 03/03/2009 16:37
The message cannot be delivered due to a configuration error on the server. Please contact your Administrator.
<mail.physicalcompany.co.uk #5.3.0 smtp;553 5.3.0 REJECT # Delivery not authorized>

Any ideas?

hodgy0_2

if the exchange server is delivering most mail I would suspect the recipients domain or your ISP

especially if they leave your exchange org

do you use DNS or a smart host to deliver mail

AOL are notorious for bouncing back email

BlkKnight

We use the root servers for DNS lookups internally.

It's only a couple of recipients, the majority are ok.

Most odd

Sonic'

You shouldnt really be using root DNS servers for lookups

Ive had a strange one that our ISP can resolve a particular domain name, we use the ISP's DNS servers and we cannot resolve the name

So I had to create a specific forwarder for that Domain Name to go to a public DNS server that could resolve it

Also been getting a few bounce backs from Exchange 2007 to specific Domains, saying No Such Recipient, but the recipient does exist

I am guessing that it is down to reverse DNS failing but our hosting company still havent added a reverse DNS entry

Kieran_Burns

iTrader: (1)

mail.physicalcompany.co.uk #5.3.0 smtp;553 5.3.0 REJECT # Delivery not authorized


is this your server or THEIR Server?

BlkKnight

That's my server.

Sort of fixed it. . . .

Changed DNS to be mixed mode - rather than secure only. Not ideal, but it seems to be working.