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We have this issue. We have a branch located in a different state us. We use exchange 2010 for our email, now, that particular branch uses standalone Outlook 2007 with POP3/SMTP. We have this requiring issue where we get the 0x800CCC0F error:

Receiving report (0x800CCC0F): the connection to the server was interrupted...

Here is the screenshot:

enter image description here

Now here is what we tried:

  1. I disabled the anti-virus (we actually use Symentic and there is a lot of posts on Symentic/Norton and AT&T (that's the ISP), which will lead to the point #2)
  2. I tried to change from secured ports to non-secured ports, but as soon as we tried to send a test email, it error-ed out because it failed to login.

OWA works just fine and all the POP3/SMTP settings are correct. The local firewall is disabled, we use hardware firewall. I am at loss here. Any suggestions?

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  • Are you able to telnet to the server correctly, e.g. telnet smtp.server.com 25?
    – snowdude
    Dec 3, 2012 at 15:26
  • @snowdude Oh yeah, there are no issues getting to the server itself.
    – George
    Dec 6, 2012 at 17:04

1 Answer 1

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Well, I know that it is a very old question. But, I would like to share my insights for this. This error is also displayed as:outlook error 0x800ccc0f

You can adopt these manual techniques to fix this particular error.

1. Check the Internet Connectivity The initial step is to check whether your system is connected to an Exchange server. For this, type a URL in the browser, if its not opening that means there is some issue with the internet. To resolve this issue, right-click on Wi-Fi connection, a pop-up message will come showing “Troubleshoot Problems”.Click on it and then resolve this issue.

2. Disabling Windows Firewall If the internet is working fine, in order to perform Microsoft Outlook error 0x800ccc0f – The Connection to the Server was Interrupted troubleshooting, then simply disable the Anti-virus and Windows Firewall. It includes steps as shown below:

To begin with, go to Start > Control Panel and then to Network Connection After that, right-click on Internet connection and select Properties option from the menu Go to Security tab, in that switch off the firewall. Now manually add incoming POP server name (pop.gn.apc.org) and outgoing SMTP server name(smtp.gn.apc.org) in the email account using the below-mentioned steps:

Open MS Outlook, Go to Tools >> E-mail Accounts Now, select View or change existing e-mail accounts and click on Next After this, click on POP3 and then Next Now, you need to write the correct POP3 mail server information and click on the Next button. Then, click on the Finish button Once changes are made, check the settings whether it is working properly. Note: Each Outlook version has got different settings, so it is necessary to check and read about correct profile settings before you make any wrong change.

3. Open MS Outlook in Safe Mode If the same Outlook error 0x800ccc0f persists despite following the above methods. Then, you need to start Outlook in safe mode by the below-mentioned steps:

To begin with, go to Start, in the search box type outlook.exe/safe Once it is finished, click on OK. 4. Removing Suspicious Emails Spam emails contain website carrying malware or virus corrupts the Outlook that might result in Outlook error Your Server has unexpectedly terminated the connection. Hence, it is essential to delete these messages by reporting to Microsoft. Or you can delete the junk folders as this will clear up space from your Inbox.

5. Use Inbox Repair Tool If the above method is unable to rectify the Outlook error message 0x800ccc0f, then it may be due to PST or OST file corruption. Microsoft provides an inbuilt Inbox Repair tool i.e., Scanpst.exe. The software is capable to recover minor level corruption from Outlook data file. But, the major disadvantage of the application is that in case of badly damaged OST file, it fails.

For more details, you can also check out this blog. I found this over the internet. It is quite helpful that's why I shared it here.

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