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.
On the Mail dialog box, under the When Starting Microsoft Outlook, use this profile box, click to select the new profile that you created in step 3.
Click OK.
Use Outlook to send yourself an e-mail.
If you successfully receive the e-mail, you have completed troubleshooting the problem.
If you do not receive the e-mail, creating a new profile did not resolve your problem. Try method 2.
Note If you use Dial-Up Networking to connect to the Internet, unfortunately, this article will not be able to help you further. Refer to the "Next steps" section for additional options.
If creating a new profile did not resolve your problem, TCP/IP might not be set as your default Internet protocol. Follow these steps to set TCP/IP as your default protocol to connect to the Internet.
Step 1: Open the Network Connection Properties dialog box
Depending on the version of Windows running on your computer, do one of the following:
Windows XP or Windows 2000: Click Start, and then click Run.
Windows Vista: Click Start
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Type ncpa.cpl and then press Enter to open the Network Connections window.
Right-click your connection to the Internet, and then click Properties.
Note If more than one connection is displayed in the Network Connections window, the connection that you use to connect to the Internet should say Connected or something similar.
On the General tab, make sure that the Internet Protocol (TCP/IP) check box is selected. If it is not, click to select the Internet Protocol (TCP/IP) check box.
Click OK.
Click Yes if you are prompted to restart your computer.
Use Outlook to send yourself an e-mail.
If you successfully receive the e-mail, you have completed troubleshooting the problem.
If you do not receive the e-mail, unfortunately, this article did not help you. Refer to the "Next steps" section for additional options.
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:
Searchable Knowledge Base
(http://support.microsoft.com/search/?adv=1)
: Search technical support information and self-help tools for Microsoft products.
Solution Centers
(http://support.microsoft.com/select/?target=hub)
: View product-specific frequently asked questions and support highlights.
Microsoft Product Support Newsgroups
(http://www.microsoft.com/communities/newsgroups/default.mspx)
: Contact counterparts, peers, and Microsoft Most Valuable Professionals (MVPs).
Other Support Options
(http://support.microsoft.com/default.aspx?pr=csshome)
: Use the Web to ask a question, contact Microsoft Customer Support Services, or provide feedback.
If you continue to have problems with sending and receiving e-mail in Outlook, you might want to contact Support:
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.