Home » News » How to troubleshoot error messages that reflect while trying to send and receive e-mail in Outlook and Outlook Express

Many of you may have received similar to any of the following error messages while trying to send and receive e-mail in Outlook and Outlook Express:

  • No connection could be established as the target machine actively denied it.
  • Could not found the server. (Account:account name, POPserver:’mail’, Error Number: 0x800ccc0d)
  • Task ‘server name – Sending and Receiving’ reported error (0x800ccc0f): ‘The connection to the server was disturbed. If this problem still persists, contact your server administrator or Internet service provider (ISP). The server responded: ? K’
  • Your server terminated the connection in an unexpected way. Possible reasons of this problem may be long period of inactivity or server problems or network problems. Account: account name, Server: ‘server name’, Protocol: POP3, Server Response: ‘+OK’, Port: 110, Secure(SSL): N0, Error Number: 0x800ccc0f
  • Task ‘SMTP server name – Sending and Receiving’ reported error (0x80042109): ‘Outlook cannot connect to the outgoing (SMTP) e-mail server. Contact your Internet service provider (ISP)’ or server administrator if you continue to receive this message.
  • The operation timed out waiting to receive a response from the receiving (POP) server 0x8004210a
  • A time-out occurred while trying to communicate with the server 0x800ccc19

Other than the above stated errors, you may also receive an error message which may include one or more of the following error codes:

  • 0x800ccc15
  • 0x80042108
  • 0x800ccc0e
  • 0x8004210b
  • 0x800CCC0B
  • 0x800CCC79
  • 0x800ccc67

You may receive these error messages if Microsoft Outlook or Microsoft Outlook Express is not able to make a connection with your e-mail server. These error messages are frequently reflected because of one of the following reasons:

  • Account settings are incorrect
  • Personal firewall software is misconfigured
  • Antivirus application
  • A bad modem
  • Size of Maximum Transmission Unit (MTU)
  • Either the installation is damaged or Outlook Express has been removed from the computer
  • Your Outlook user profile is damaged
  • An e-mail item on your POP3 server is damaged

Use one of the following methods according to your situation to work around this problem:

Method 1: Make sure that your e-mail server settings are correct

Contact your system administrator or Internet service provider (ISP) to know about the correct settings for your e-mail server.467488fc250a506705a1569972b7bc57

Note: Some ISPs do not allow message routing through another SMTP server while you are connected to their network. Replace the SMTP server that is associated with the ISP that you use to connect to the Internet for the other ISP or the other e-mail account with the SMTP server to resolve this problem.

If you are using Trend Micro PC-cillin antivirus software and you notice that your account settings have been changed to “Localhost” in the Post Office Protocol (POP) server settings and “account name/pop server name” in the Account Name box on the Server tab, disable the POP3 Scan feature (Pop3trap.exe) of the Trend PC-cillin software. Follow the following steps to do so:

  • Double-click the PC-cillin icon, in the notification area of the taskbar.
  • Click to uncheck Enable POP3 Scan box.
  • Reconfigure your POP3 e-mail account in Outlook with the right settings.
  • Additionally, it is also reported that you need to turn off the PC-cillin Web-Filter option, and Enable POP3 Scan option.

Method 2: Verify your firewall software configuration

To grant access to the Internet for the following files, you need to configure your firewall software:

  • For Outlook Express: Msimn.exe
  • For Outlook: Outlook.exe

By default, most e-mail clients have to have inbound access on port 110 and outbound access on port 25. To know more about the ports that communicate with your e-mail server, contact system administrator or your ISP

Firewall software which may be responsible for showing this problem include software programs by the following vendors:

  • McAfee
  • Symantec
  • Cisco
  • Cygate
  • Sonicwall
  • ZoneLabs
  • Freedom Security Zero Knowledge

McAfee Personal Firewall

To make sure that Microsoft Outlook or Microsoft Outlook Express has full access, check your configuration settings in the McAfee Personal Firewall program. Visit the following McAfee Web site to know more about how to configure McAfee Personal Firewall: http://www.mcafee.com

Alternatively, you can fix the issue by removing and reinstalling the McAfee Personal Firewall program. Reinstalling the Personal Firewall program process recreates the program signature file that is used by the firewall. This reinstallation process makes sure that both Outlook and Outlook Express get include in the list of programs where they are permitted to access Internet.

Norton Personal Firewall (Symantec)

Remove your Norton Person Firewall or Norton Internet Security software if you are running Norton Personal Firewall 2002, Norton Internet Security, or Norton SystemWorks software by Symantec. Your problem will be resolved by now and you can reinstall your Norton software. It is likely that you may not face the same problem again.

Method 3: Check your antivirus vendor’s Web site for more suggestions

You may need to do additional configuration to use Outlook or Outlook Express if your antivirus solution includes an e-mail scanning feature.

Antivirus software products by the following vendors have been known to cause this problem:

  • Symantec (Norton)
  • McAfee
  • Trend Micro (PC-cillin)
  • Panda

We also provide technical support to fix such issues and you can contact use to get support for Outlook and support for Outlook Express.

For more in details, visit the following Web sites:

Symantec: http://us.mcafee.com/root/support.asp?cid=9045″>http://www.symantec.com/techsupp/

Trend Micro: http://www.pandasoftware.com/support/default.aspx”>http://kb.trendmicro.com/solutions/default.asp?cType=3&prodID=0&versionID=0

Method 4: Make sure that your modem is working correctly

To find out if there are any known issues or updates for the type of modem you are using, contact the vendor of your modem.

Method 5: Verify the size of Maximum Transmission Unit (MTU) set on your router

The MTU size set on your router may not allow packets to pass through if they are larger than a certain size. Generally, these types of errors will encounter if you are connecting to the Internet through a Linksys BEFSR41 router, a Linksys BEFW11S4 router, or a Linksys BEFSR81 router. These are the routers which have Maximum Transmission Unit (MTU) problems and may cause timeout errors while you are trying to send e-mail messages.

To fix the issues, make the alteration in the MTU setting for your router. To know how to change the MTU settings, go through the documentation included with your router, or visit the Linksys Web site:


Important Note: Other than the above specified issue, this problem may encounter router is misconfigured which is a device between you and your mail provider. These types of devices are referred as ‘black hole’ routers.

Method 6: Uninstall and then reinstall Outlook Express

Outlook will not function correctly if Outlook Express has been removed from your device or Outlook Express installation is damaged. In this case it may show one of the error messages which are explained in the “Symptoms” section. Reinstall Outlook Express to resolve this issue.

Method 7: Create a new e-mail profile

Creating a new e-mail profile may also be able of resolving these problems.

Method 8: Remove suspicious messages from your mailbox

If there is a damaged message in your mailbox, implement one of the following tricks to fix this issue:

  • Call your ISP and ask them to help you with deleting any suspicious e-mail.
  • Access your mailbox by using your ISP’s Web-based e-mail program and delete any suspicious e-mail there.

Bonus Tip: If a timeout error message is accompanying the error code, by increasing the server timeout setting in Outlook or in Outlook Express, you may resolve this problem.

If you need any kind of professional help to configure your computer or expert support for Outlook Express talk to us for immediate support. We provide 24*7 help to resolve all technical complexities related to your Outlook and all other computer related issues.