SBS SP1 With Exchange 2003
- IBL@discussions.microsoft.com Barrie - IBL
Exchange and use an ISP for email collection - our exchange server collects
and delivers correctly ffrom the external mail server to the users internal
email for example sup...@example.local
However - We allow some of our customers to use email addresses within our
ISP domain (example.com) but we cannot email them at all. If we try to email
them from inside our organisation the message gets bounced back as the user
does not exist in the internal domain.
I understand the concept as to why this is happening but cannot find a
solution that will forward any internal mail with example.com addresses to
the www.
Your help would be greatly appreciated.
Thank You
Merv Porter [SBS-MVP]
E-mail to external recipients with the same e-mail domain causes NDR
messages when using the POP3 Connector
http://support.microsoft.com/?id=300681
--
Merv Porter [SBS MVP]
===================================
"Barrie - IBL" <Barrie - I...@discussions.microsoft.com> wrote in message
news:6771722F-4608-4B4C...@microsoft.com...
Nathan Liu [MSFT]
Thank you for posting in the SBS newsgroup.
Also, many thanks for Merv's great input.
According to your description, I understand that you cannot send email to
external recipients with the same email domain. If I have misunderstood the
problem, please don't hesitate to let me know.
Merv is right on target. This behavior occurs when Exchange is configured
to be responsible for the e-mail domain that the external POP3 mail server
is hosting. When Exchange is responsible for an e-mail domain, it always
tries to deliver mail that is addressed to that domain to a local
recipient. If a local recipient with that e-mail address does not exist,
Exchange generates the NDR message that is described in the "Symptoms"
section.
To work around this behavior, use either of the following methods.
Method 1
Configure the SMTP virtual server in Exchange to send mail with unresolved
recipients to the Internet service provider's (ISP's) mail server. To do
this, follow these steps:
1. Click Start, point to Programs or to All Programs, point to Microsoft
Exchange, and then click System Manager.
2. Expand Servers, expand Servername, expand Protocols, and then expand
SMTP.
Note If Exchange System Manager is configured to display the administrative
groups, you must expand Administrative Groups before you expand Servers.
Then expand the administrative group that contains the mail server.
3. Right-click the SMTP virtual server, and then click Properties.
4. Click the Messages tab, type the name or the IP address of the ISP's
mail server under Forward all mail with unresolved recipients to host, and
then click OK.
The SMTP mail server that you specify must be the ISP mail server that
receives messages for the POP3 accounts. This may be different from the
POP3 server that you connect to when you download messages from the ISP.
5. Right-click the SMTP virtual server, and then click Stop.
6. Right-click the SMTP virtual server, and then click Start.
Note In this case, any e-mail that local users send to recipients that do
not exist on your server will be forwarded to the ISP's mail server.
Method 2
Configure the Default Policy in the Exchange recipient policy to use the
local e-mail domain as the primary address, and then add an additional
recipient policy to apply the POP3 e-mail domain to the local user
accounts. This way, the e-mail domain for the local users will match the
e-mail domain that the POP3 mail server is hosting, but Exchange will not
be the responsible mail server for this e-mail domain.
Be aware that the user accounts must be configured to be updated by
recipient policies. This option is available under the properties for each
user on the Email-Addresses tab.
To configure the recipient policies in Exchange, follow these steps:
1. Click Start, point to Programs or to All Programs, point to Microsoft
Exchange, and then click System Manager.
2. Expand Recipients, and then click Recipient Policies in the left pane.
In the right pane, the Default Policy is listed.
3. Double-click Default Policy, and then click the E-Mail Addresses tab.
4. By default, an SMTP e-mail address that matches your internal domain
name appears in the list of addresses. For example, if your internal domain
name is mycompany.local, the address @mycompany.local will appear in the
list. If the internal domain address is not listed, follow these steps to
add it:
a. Click New.
b. Click to select SMTP Address, and then click OK.
c. In the Address box, type the internal domain address, and then click
OK. For example, type @mycompany.local.
5. Click to select the internal domain address, and then click Set as
Primary.
6. Click to select the POP3 domain address, and then click Edit.
7. Clear the box that says This Exchange Organization is responsible for
all mail delivery to this address, and then click OK.
8. Click OK to apply the changes.
9. Click Yes or OK two times to update all corresponding recipient e-mail
addresses.
10. Right-click Recipient Policies in the left pane, point to New, and
then click Recipient Policy.
Note If you have Exchange Server 2000 Service Pack 1 (SP1) or later, a
dialog box appears that prompts you to select the type of recipient policy
that you want to create. In this case, click to select the E-Mail Addresses
check box, and then click OK.
11. Type a name for the recipient policy, and then click Modify.
12. In the Find Exchange Recipients dialog box, click to select Users with
Exchange mailbox, and clear all the other check boxes.
13. Click OK, and then click OK on the warning message that you receive.
14. Click the E-Mail Addresses tab.
15. Click to select the POP3 domain address, and then click Set as
Primary.
16. Click OK to apply the changes.
17. Click Yes or OK two times to update all corresponding recipient e-mail
addresses.
Note Every time that you run the Internet Connection Wizard or the
Configure E-mail and Internet Connection Wizard and set it to modify the
Exchange settings, the wizard will set the e-mail domain address that you
enter in the wizard as the primary address on each recipient policy. After
the wizard is completed, you must repeat the steps that are mentioned in
this article to modify the recipient policy.
More information:
300681 E-mail to external recipients with the same e-mail domain causes NDR
messages when using the Connector for POP3 Mailboxes
http://support.microsoft.com/?id=300681
885685 How to troubleshoot the POP3 Connector in Windows Small Business
Server 2003
http://support.microsoft.com/?id=885685
I appreciate your time and cooperation. If anything is unclear, please feel
free to let me know. I am looking forward to hearing from you.
Best regards,
Nathan Liu (MSFT)
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>From: =?Utf-8?B?QmFycmllIC0gSUJM?= <Barrie - I...@discussions.microsoft.com>
>Subject: SBS SP1 With Exchange 2003
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Barrie - IBL
Thanks for the feedback it was most helpful and the issue is now resolved.
I realise now that when I initially setup the exchange server I actually
told it that it served all mail for this domain which was incorrect.
Many thanks again.
Regards
Barrie.
Barrie - IBL
Thank you every so for the assistance as I said to Nathan I realise now that
I told the Exchange server that it was responsible for the entire mail domain
on setup which was incorrect.
Thjis is now resolved.
Thanx again.
Regards
Barrie
Nathan Liu [MSFT]
Thank you for posting back! I'm glad to hear that things are working
correctly for you now. Please do not hesitate to post in this great
newsgroup if you need any assistance in the future. I look forward to
working with you again.
Best regards,
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>Subject: RE: SBS SP1 With Exchange 2003
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