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recipient email server rejects emails - relay access denied (server domain name different from email domain).

sidartra
sidartra asked
on
Medium Priority
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Last Modified: 2012-05-11
Dear all,

Autoforwarded emails to an external party is being rejected by their email server. It says Relay Access is denied. Possibly because our email server internal server domain is pigeon.zentree.lan but our email domain is @zentreecompany.com (all domains are examples/ficticious). Any suggestions on how to resolve this? Many Thanks.


Delivery has failed to these recipients or distribution lists:

sg.team@sg.clienthome.com
A communication failure occurred during the delivery of this message. Microsoft Exchange will not try to redeliver this message for you. Please try resending this message later, or provide the following diagnostic text to your system administrator.

The following organization rejected your message: VA3EHSMHS031.bigwhale.com.
  _____  
Sent by Microsoft Exchange Server 2007

Diagnostic information for administrators:

Generating server: pigeon.zentree.lan

sg.team@sg.clienthome.com
VA3EHSMHS031.bigwhale.com #550 5.4.1 Relay Access Denied ##rfc822;info@zentreecompany.com

Original message headers:

Received: from pigeon.zentree.lan ([::1]) by pigeon.zentree.lan ([::1]) with
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Commented:
I have changed the Send Connector to pigeon.zentreecompany.com but I still get the same rejection email that Relay Access is denied and it states my server's internal domain name pigeon.zentree.lan.

I have rebooted my Exchange Server.

Any other suggestions? Thanks.
viveksahuLead Consultant
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Commented:
Hi,

I am sending as Outlook 2003 to an Exchange 2007 server, so there is no Server Authentication (for SMTP).

I tried to telnet my external domain and it answers with the internal domain name i.e.

telnet pigeon.zentreecompany.com 25, I get a response from pigeon.zentree.lan

Any suggestions on how to change this? I ahve already changed the send connector to pigeon.zentreecompany.com but apparently the settings is somewhere else.

Thanks.

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Commented:
Hi,

We have a workflow mailbox that automatically forwards any emails to an external email .e.g all emails to info@zentreecompany.com gets automatically forwarded to sg.team@sg.clienthome.com .

This is set in the Recipient Configuration -> Mailbox -> Mailflow -> Delivery properties -> Forwarding (delivery to both forwarding address and mailbox) and the external party is defined as a contact.

When I send directly (Compose -> Send) the emails get delivered.

Any suggested next steps? thanks.

Author

Commented:
fyi when i create a email with the recipient email address it is successfully delivered.

But when I create and send a email using the mail contact as recipient name (even though the email address is correct) , the email delivery fail.  

Any suggestions welcomed. Thanks.
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Commented:
Hi,

I looked at the Mail Contact Delivery Restrictions , there are none, and I have tried "require that all senders are authenticated"both chekced and unchecked. I still get the same bounced error message from the recipient email server.

Any other suggestions please? Thanks.
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Commented:
When I use GAL to select the mail contact, I get the same bounced error message from the recipient email server that Relay Access is Denied.
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Commented:
Hi,

Yes, The Exchange 2007 Server is patched to SP3.

No bigwhale.com is the part of the recipient's email server system, which is rejecting our emails.

And IPv6 is disabled on all the NICs on the server.

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Commented:
Yup, still same error message.

It seems :

1. If the email is send via Outlook 2003 -> Exchange server 2007 (MAPI client) it goes though to recipient server.

2. if the email is send via Outlook 2003but using GAL mail contact (External SMTP address)  -> Exchange server 2007 (MAPI client) it is rejected by recipient email server (Relay Access Denied).  

I have the same problem when I setup a Outlook 2003 IMAP client to the Exchange 2007 server , If I do not select SSL connection for the SMTP Outgoing email, it says relay access denied. But if I select SMTP SSL (port 25), it goes through, but will warn me that the server cert is not trusted.

This is my World of frustration.
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Commented:
Had tested many changes over the weekend but did not keep track of the last change which there was no bounced mail.

Will continue monitoring tomorrow (Monday) to see if there are any bounced / rejection email from recipient server.

Maybe the last change was to recreate the server cert.
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Yup, there seems no more bounced mail. I made many changes but if I have to put my finger I would say it would be re-creating the cert (this may be a wrong conclusion).

Anyway, water under the bridge for now.

Cheers
Joo

Author

Commented:
Solved but by trail and error and still unsure which step was the resolution
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