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Because you can receive E-mail by using Outlook Express, we may check POP3
Connector as following:
1. Check if POP3 connector has downloaded the message successfully, to do
it as following:
1) Expand Advanced Management | Exchange server | Servers | Server Name |
2) Click Queue.
3) In right pane, select the option and then click Find Messages to check.
2. If POP3 Connector does not successfully download the message, we may set
Maximum POP3 Connector log. To do it, follow these steps:
1) Click Start, point to Programs, point to Microsoft Exchange, and then
click System Manager.
2) In the left pane, expand the Connectors node.
3) Right-click "Connector for POP3 Mailboxes", and then click Properties.
4) In the "Connector for POP3 Mailboxes Properties" dialog box, click
5) Verify that the "Enable event logging on the services" check box is
6) Under the Services box, click Delivery Service, and under Logging Level
7) Click OK to apply changes.
8) Close the System Manager console.
9) Click Start, point to Programs, point to Administrative Tools, and then
10) In the left pane, right-click "Microsoft Connector for POP3", and then
click Restart. After the service restarts, close the Services Management
3. If POP3 Connector successfully downloads the message, we may try the
1) This issue can occur if the POP3 Event Sink is not correct registered.
To resolve the issue, go to the C:\Program Files\Microsoft Windows Small
Business Server\Networking\POP3 folder and double click to run IMBReg.exe.
Then restart the service and check if everything is OK.
2) If you configure Globale Mailbox in POP3 Connector for all the internal
users, you should make sure the users' primary email domain matches the
Internet domain that the POP3 Mailbox is using. For example, if the POP3
mailboxes hosted at the ISP side are suing XXXX@XXXXX.COM email
addresses, you should make sure the users are also use
XXXX@XXXXX.COM as their primary addresses. If the users are using
XXXX@XXXXX.COM as their email addresses, you should add
@publicdomain.com in the Default Recipient Policy. To do so, please take a
look at the following KB article which also applies to SBS 2003:
325464 The POP3 Connector May Not Deliver Mail to Users
3) This issue can also occur if the Incoming Mail or Failed Mail folders
are corrupted. You should probably see the event 1046 or 1048. To resolve
the issue, perform the following steps:
a. Stop the Microsoft Connector for POP3 Mailboxes Service.
b. Rename "C:\Program Files\Microsoft Windows Small Business
Server\Networking\POP3\Incoming Mail" to "C:\Program Files\Microsoft
Windows Small Business Server\Networking\POP3\Incoming Mail.old".
c. Rename "C:\Program Files\Microsoft Windows Small Business
Server\Networking\POP3\Failed Mail" to "C:\Program Files\Microsoft Windows
Small Business Server\Networking\POP3\Failed Mail.old".
d. Create a new "Incoming Mail" and "Failed Mail" folders in the C:\Program
Files\Microsoft Windows Small Business Server\Networking\POP3\ directory.
e. Double Click imbreg.exe in the "C:\Program Files\Microsoft Windows Small
Business Server\Networking\POP3" directory. Then check if everything is OK.
More information on troubleshooting