This article describes how to troubleshoot Microsoft Outlook when you cannot send or receive e-mails. The article outlines troubleshooting steps for Outlook 2007, Outlook 2003, and Outlook 2002. If you use an earlier version of Outlook, refer to the "Similar problems and solutions" section for an article that pertains to your version. This article is intended for a beginning to intermediate computer user. You may find it easier to follow the steps if you print this article first.
You should first try to determine whether you can connect to the Internet. If you are connected to the Internet but you cannot send or receive e-mails, go to method 1 to create a new e-mail profile.
If you cannot connect to the Internet, this might be the reason that you are unable to send or receive e-mails. You might want to contact your ISP. After your Internet connection is restored, try to send yourself an e-mail to check whether your problem is resolved. If you are still unable to send or receive e-mails after your Internet connection is restored, go to method 1.
If these methods did not work for you, you can use the Microsoft Customer Support Services Web site to find other solutions to your problem. The services that the Microsoft Customer Support Services Web sites provide include the following:
The following list describes other possible causes of Internet connection problems:
Most Internet addresses and connection settings are case-sensitive. Check for correct capitalization.
Establish the Internet connection, and then start Outlook. If you receive an error message when you try to send or to receive e-mail, confirm all Internet Mail settings with your ISP. You may have typed a DNS address or a news server address instead of the mail server address.
Remote mail configurations may cause unexpected results. If you configure a service for remote mail, you may lose connections. Alternatively, e-mail may not be sent or received as expected.