Incoming Email not going ot Exchange Mailbox

I have the Pop3 connector in Small Business Server 2003 connecting and retreiving messages from our mail server online.  THe downloaded messages do not go to the required user mailboxes.  I'm not sure where they go...

I use the pop3 connector, click retreive mail (or I could wait the 15 minutes) - I see the message disappear  from the server, but it never makes it to the user inbox.  The user in question can send mail, but can not receive mail.  Where would the emails be going?

I'm kind of looking for a starting point here, since I know this question probably has a bunch of variables.  
In the end, all I want my SBS2003 to do is to retreive and send emails via Pop3.  Any insight would be appreciated!  Thanks!
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steverguyAsked:
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amac81Commented:
In the pop3 connector do you have each user set up with their associated mailbox?  Meaning each login to the POP3 site should have an associated Exchange Mailbox.
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Brad HeldCommented:
Messages are never sent via pop3 they are only sent via smtp.
Have you stoped and restarted the pop3 connector. Chances are the messages are waiting in the queue to be delivered.
Are you getting 1070 in the Event log? If so then:
Event ID 1070 - The e-mail could not be delivered because the recipient's e-mail domain name does not match any local e-mail domains.

Symptom: When the SBS 2003 Connector for POP3 Mailboxes component downloads e-mail messages from an Internet Service Provider (ISP) all the following symptoms may occur:

E-mail messages that are downloaded by the SBS 2003 Connector for POP3 Mailboxes are not successfully delivered to the intended recipients.
The Exchange 2003 Server removes the e-mail messages that it was not able to deliver.
The senders of these e-mail messages do not receive non-delivery reports from the Exchange 2003 Server-based computer as they typically do if their e-mail messages do not reach the intended recipients.
 The following event may be logged in Event Viewer:
Event Type: Warning
Event Source: POP3 Connector
Event Category: Delivery
Event ID: 1070
Description:
An attempt to relay e-mail to recipient <SMTPAddress> was made. The e-mail could not be delivered because the recipient's e-mail domain name does not match any local e-mail domains.

Cause: This issue may occur when the Windows SBS 2003 Connector for POP3 Mailboxes component downloads e-mail messages from a domain that is not found in the Exchange 2003 organization default recipient policy. You may experience this issue when you configure a POP3 account with a domain that is outside your Exchange organization.

For example, when the POP3 accounts use the e-mail domain address @externaldomain.com, and the Exchange default recipient policy does not include @externaldomain.com, the Connector for POP3 Mailboxes does not deliver the e-mail messages that it downloads from the Internet Service Provider (ISP). This issue may occur when the address on the POP3 e-mail message does not match any one of the addresses in the default recipient policy. In this case, the connector detects the message delivery as an attempt to relay the e-mail message to an external e-mail server and removes the message. The removed e-mail message is permanently removed and is not recoverable.
Resolution: To work around this issue, add the POP3 email address as a secondary SMTP address in the Exchange default recipient policy, and then restart the IIS. To do this, follow these steps.
Add a secondary SMTP address to the Exchange recipient policy

1. Click Start, point to All Programs, point to Microsoft Exchange, and then click System Manager.
2. Expand Recipients, and then click Recipient Policies.
3. In the right pane, right-click the Default Policy, and then click Properties.
4. Click the E-Mail Addresses (Policy) tab.
5. Verify that the local domain name appears in the SMTP address and that you do not have an SMTP address configured for an external domain, such as an ISPs domain name.
6. Click New, click SMTP Address, and then click OK.
7. Type the POP3 e-mail address, such as @MyISP.com
8. Click to clear This Exchange Organization is responsible for all mail delivery to this address.
9. Click OK.
10. Click to check the SMTP address you created in step 9.
Note Do not click Set as Primary.
 
11. Click OK, click Yes, and then click Yes.
12. Quit Exchange System Manager.

Restart the IIS service
1. Click Start, click Run, and then type cmd.
2. At the command prompt type iisreset, and then press ENTER.
Configure the primary e-mail address for the POP3 users

The primary e-mail address in Exchange is the address that appears on the From line when a user sends an e-mail message. Some users may want their primary e-mail address in Exchange to match their POP3 e-mail address. To configure the primary e-mail address in Exchange to match the POP3 e-mail address, use one of the following procedures, depending on whether you want to configure the user accounts individually, or you want to configure a group of user accounts at the same time. This step is optional.

Method 1: Configure the user accounts individually
If only a few users want their primary e-mail address to match their POP3 e-mail address, you can change these user accounts individually. To change the user accounts individually, follow these steps:

1. Click Start, click All Programs, click Administrative Tools, and then click Active Directory Users and Computers.
2. Expand the container where the user accounts are located, right-click the user who you want, and then click Properties.
3. Click the E-mail Addresses tab, and then click to clear Automatically update e-mail addresses based on recipient policy.
4. Click the POP3 e-mail address, click Set as Primary, and then click OK.
5. Quit Active Directory Users and Computers.

Method 2: Configure a group of user accounts at the same time

If several users want their primary e-mail address in Exchange to match their POP3 e-mail address, you can change a group of user accounts at the same time. To change a group of user accounts at the same time, follow these steps:

1. Click Start, point to All Programs, point to Microsoft Exchange, and then click System Manager.
2. Expand Recipients.
3. Right-click Recipient Policies, point to New, and then click Recipient Policy.
4. Click to select E-Mail Addresses, and then click OK.
5. In the Name box, type a name for the new recipient policy. For example, type POP3 Users.
6. Click Modify.
7. In the Find Exchange Recipients box, click to select Users with Exchange mailbox, and clear all the other check boxes.
8. Click Find Now.
9. While pressing the Ctrl key, click to select the user accounts in the Search results box, and then click OK.
10. Click OK on the warning message about recipient policy filter changes.
11. Click the E-Mail Addresses (Policy) tab.
12. Click the POP3 e-mail address, and then click Set as Primary. Do not clear the check box for this address.
13. Click OK, and then click Yes two times to update the e-mail addresses.
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amac81Commented:
This is done through the "manage server" on the sbs2003 box.  You'll see the pop3 connector manager.
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aloyd18Commented:
I'd start with this... http://www.slipstick.com/exs/popconnect.asp 

It sounds to me like you have an authentication problem... check this out. http://technet.microsoft.com/en-us/library/bb124498.aspx 

Technet is a good place for help... http://technet.microsoft.com/en-us/default.aspx

Let me know if you have any more questions.

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MarkMichaelCommented:
Use Exchange System Manager to find out if the user has had mail delivered to their mailbox.

Click on Tools > Message Tracking Center
Input your server name
The username mailbox
and select a date.
Scroll through the list to find out if any emails have been delivered to the mailbox.
If not, you can then put it down to queues or a pop3 connector issue.

Also, check here if there is any mail in these folders:
C:\Program Files\Exchsrvr\Mailroot\
C:\Program Files\Microsoft Windows Small Business Server\Networking\POP3
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steverguyAuthor Commented:
I've looked at the Event Log and it looks like its going through the prosesses fine.  I have two users set up on the Pop3 connector each with Exchange Mailboxes.  When I click the retreive email link, it connects, deletes the email from the server and says the message was routed to mailbox 'whoever@ourdomain.com'...  but when i go to the clients computer and check their Outlook the message doesn't show up.

I've looked through the folders that were mentioned above and I don't see the messages.

I'm wondering if I set this up wrong.  It's strange because I can send messages just fine from the client computers.  I know incoming and outgoing are different things, but this isn't making sense to me.

I also used the connection settings in Outlook Express to ensure everything was correct as far as authentication - everything checks out.

Any other ideas?   Thanks again for the help!

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steverguyAuthor Commented:
A new development... maybe this provides some insight.  I reran the Internet and Email connection wizard from the Server Manager, i entered a domain name , now emails get sent to the inboxes, however, outgoing mail needs authentication. If I remove this domain name, i will be able to send email, but not receive email.  My internet provider requires authentication... smtp.att.yahoo.com is my smtp server.  I've tried using the hosting companies SMTP server, but it doesn't work.

Hope this sheds some light... and as always, thanks!
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steverguyAuthor Commented:
Thank you for your help.  The problem ended up being Authentication - but I didn't see what was going on until I looked at the event log.  So I'm splitting the points.  I had to change my SMTP server, and enter a domain during the Internet / Email setup wizard.  Now everything seems to function.
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MarkMichaelCommented:
You will need to contact your provider to use them to send via SMTP, otherwise everyone else will try and use this to get around being blacklisted.
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