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Fix 0x800cc0b Errors in Outlook 2013: Resolving SMTP Issues in Outlook

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By: techalphy

July 3, 2018

Finding a solution to fix 0x800cc0b errors in an Outlook account is not a difficult task. The following article describes the solution to fix Outlook SMTP issues that result in problems in receiving and sending messages in an MS Outlook mailbox.

Microsoft Outlook has always been the most preferred email client. It is very popular among business users for email communication. It has many advanced features, such as a task manager, calendar, notes, journals, etc. Nowadays, users share lots of information through Outlook, so the client is always storing lots of important data. But in some cases, Outlook stops working properly and breaks the workflow. In addition, when a user tries to access Outlook, it may generate error messages. Among all possible issues, error 0x800cc0b in Outlook 2016, 2013, and other earlier editions is the most common one. Now, there can be any possible reason behind this error, like improper Outlook installation, corruption in PST files, etc. In order to fix this MS Outlook error, it is important to understand the cause of this issue.

Is There Any Quick Way to Fix This Issue?

Yes. If you are struggling with Outlook due to error code 0x800cc0b, then the priority is to resolve the issue, rather than learning the exact reasons for the problem. The SysTools Outlook PST recovery software is an excellent resolution technique to repair Outlook PST file errors. The best part is that it delivers the required output in a few simple steps compared to technically difficult and lengthy manual methods.

Why Does the 0x800cc0b Error Occur in Outlook?

If you need to understand more about Outlook error code 0x800cc0b, then this blog will help you. The main causes and its reasons, and its solutions in the manual, as well as automated methods, are explained in this article.

The PST file is complex in nature, so it easily gets damaged and becomes inaccessible. And later, it may start generating error messages. It is important to have complete knowledge about the error because it can be very harmful to the data stored in Outlook PST files. Therefore, in this section, we will discuss all the major reasons behind the error 0x800cc0b in Outlook 2013 and other earlier and later versions.

  • It can be due to damaged downloads or improper installation of the MS Outlook application.
  • There might be corruption in Windows registry because of some change (install or uninstall) in an MS Outlook-related application.
  • Corruption in Windows system files or program files of Outlook because of a virus or malware attack.
  • Someone has accidentally deleted files related to Microsoft Outlook.

This “0x800CC0B error in Outlook” is basically a runtime error, which can be encountered for a number of reasons. So, after identifying the exact reason behind the error code, it is important to troubleshoot it.

Different Methods to Fix Outlook Error Code 0x800cc0b

After finding the reason behind the error, it's time to resolve this error as soon as possible. Thus, to fix Outlook PST file errors, we have covered both manual and professional solutions. A user can choose either of them, as both are discussed below:

Method#1: Fix Send or Receive Error 0x800CCC0B in Outlook Manually

  1. Open the MS Outlook application and go to Tools >> Account Settings option.
  2. After that, a new Account Setting window will open. Here, click on Email.
  3. Then, you need to double-click on the email address to which you are unable to send email.
  4. Now, a window will pop up on the main screen. Click on the More Settings buttons.
  5. After this, a new Internet E-mail Settings window is displayed.
  6. Here, you need to navigate to the Outgoing Server tab. Choose the My outgoing server (SMTP) required authentication check box.
  7. Next, simply click on the Use same setting as in my incoming mail server option.
  8. At last, click on the OK button and complete the process.

Method#2: Use the Inbox Repair Tool

If a user is unable to resolve this 0x800cc0b error in Outlook by the above manual method, then he/ she can use scanpst.exe instead. It is a free, inbuilt application provided by Microsoft to repair PST files in Outlook. It helps users in getting lost data back without any efforts. A user just needs to run the application and upload PST files. The tool will scan and repair PST files in the best way possible. But in the case of badly damaged PST files, the scanpst.exe fails. It is able to fix only a minor level of issues. Thus, for severely damaged cases, one needs to look for some alternatives. Moreover, both of the above discussed solutions do not guarantee a perfect solution to overcome all types of PST file issues.

Method#3: Use the Outlook PST Recovery Tool

In order to have a guaranteed solution for 0x800cc0b errors in Outlook, it is highly recommended to switch to a professional solution. Among all such applications, SysTools Outlook.pst Error Repair tool is one of the most famous applications used across the globe. It is the finest application to repair PST data files without any limitations. It recovers all data items like emails, contacts, calendars, tasks, etc., from PST files. Moreover, the tool is also capable of repairing severely damaged Outlook PST files in just a few simple clicks. In addition, one can easily recover PST files in any Outlook versions on any version of Microsoft Windows OS efficiently.


There is a number of errors faced by Outlook users nowadays. But the 0x800CC0B error in Outlook 2016, 2013, 2010, 2007, 2003, etc. is a frequent one. After a very deep search, it is clear that the main reason behind this error code 0x800cc0b is corruption in PST files. Thus, in this blog, both manual and professional solutions are discussed to repair corrupt Outlook data files. Manual solutions are not foolproof methods to repair PST file errors. So, for an effortless approach, go for a third-party tool as discussed above.

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