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Outlook Error 0x800ccc1a Fix – Complete Guide to Resolve Error in 2026

  Tej Pratap Shukla
Written By Tej Pratap Shukla
Anuraag Singh
Approved By Anuraag Singh
Modified On March 2nd, 2026
Reading Time 6 Min Read

Facing the error 0x800ccc1a in Outlook? Look no further! This blog explains the top 6 ways to eradicate the Outlook error 0x800ccc1a. Here, we explain both manual and automated solutions for you to try out and find out which one best fits your requirements. Moreoever, we also share the reasons behind the occurence of this error. So, stay tuned and see how you can mitigate the error in your MS Outlook securely.

Table of Contents

Reasons for the Outlook Error 0x800ccc1a

Here in this section, we are going to discuss some of the major reasons for 0x800ccc1a

  • Improper Installation: Due to improper installation of MS Outlook can result in the showing of error.
  • Virus Attack: Due to virus attack or malware attack can result in the Outlook message error.
  • SSL: The wrong port number for incoming and outgoing server can result in the error
  • Improper shutdown: Improper shut-down of the system can also result in showing of error 0x800ccc1a , the next time when the user starts Outlook.

The Outcomes of Outlook Error 0x800ccc1a

  • PC Crashing: PC crashes frequently while running the same program
  • Window Crashing: With the error 0x800ccc1a, crashing of Windows take place
  • System slow-down: Due to the error Windows run slowly, mouse and keyboard takes lot of time to respond
  • Freezing: There is a regularity in the freezing of computer for few seconds

Now that we have cleared the reasons behind the error and the outcomes of it, it’s time to move on to the solutions to eradicate it.

How to Fix Error 0x800ccc1a in Outlook? – Top Methods

  • Verify Incoming and Outgoing Server Settings
  • Temporarily Disable SSL
  • Enable “My Outgoing Server Requires Authentication
  • Disable Antivirus Email Scanning Temporarily
  • Make A Fresh MS Outlook Profile
  • Use The SysTools Outlook PST Repair Tool

In the upcoming sections, we will explain each of these emthods in detail. Stay tuned to find the right solution for you to eradicate the error.

Verify Incoming and Outgoing Server Settings

One of the most common causes of the Outlook error 0x800ccc1a are incorrect mail server settings. Here’s how to verify if yours is causing any issue:

  • Launch MS Outlook on your computer.
  • Head to “File” >> “Account Settings” >> “Account Settings”.
  • Then, select your email account and click “Change”.
  • Afterward, verify:
    • Incoming mail server (POP or IMAP)
    • Outgoing mail server (SMTP)
  • Upon doing so, click on “More Settings”.
  • Then, go to the “Advanced” tab and check:
    • Incoming server port
    • Outgoing server port
    • Encryption type

Common Port Settings:

For POP3

  • Port: 110 (No Encryption)
  • Port: 995 (SSL)

For IMAP

  • Port: 143 (No Encryption)
  • Port: 995 (SSL)

For SMTP

  • Port: 25 (Non-secure)
  • Port: 465 or 587 (SSL/TLS)

If your SSL is enabled, however, your provider does ot support it, uncheck SSL and test once more.

At last, click “Test Account Settings” before saving all changes.

Temporarily Disable SSL

Disabling SSL is another way to resolve the issue, especially if your server does not support it. Here’s how to do so:

  • In MS Outlook, go to “Account Settings” and click “Change”.
  • Then, select “More Settings”.
  • Upon doing so, open the “Advanced” tab.
  • Uncheck the “This server requires an encrypted connection (SSL)” option.
  • After that, set the encryption type to “None”.
  • Finally, click “OK” >> “Next” >> Finish”.

Upon following all the above-mentioned steps, restart your MS Outlook and check if the error still persists.

Enable “My Outgoing Server Requires Authentication”

Oftentimes, your SMTP authentication is not enabled which eventually may contribute to the Outlook error 0x800ccc1a.

  • Go to the “Account Settings” in MS Outlook.
  • There, click on “Change” >> “More Settings”.
  • After that, head to the “Outgoing server” tab.
  • Then, check the box for “My outgoing server (SMTP) requires authentication”.
  • Upon doing so, select “Use same settings as my incoming mail server”.
  • At last, click “Ok”.

Once you have followed all the steps, restart your Outlook application and test again if the error has now resolved.

Disable Antivirus Email Scanning Temporarily

More often than not, the email scanning features in the antivirus software can block encrypted connections. Thus, in this segment, we are going to share the quick steps to resolve it.

  • First, open your antivirus software.
  • Next, temporarily disable the email scanning.
  • Upon doing so, restart your MS Outlook.
  • Then, test Send/Receive.

If you find that your issue is resolved after following these steps then, configure antivirus to exclude Outlook instead of keeping it disabled permanently.

Make A Fresh MS Outlook Profile

Creating and configuring a new Outlook profile often helps in resolving the error 0x800ccc1a in Outlook, especially in scenarios like profile corruption

  • Close MS Outlook and open Control Panel on your system.
  • Then, click “Mail” >> “Show Profiles” >> “Add”.
  • After that, enter a new profile name.
  • Next, reconfigure your email account.
  • Finally, set the new profile as the default.

Once you follow all the above-given instructions, open MS Outlook and test again.

Manual Methods Didn’t Work? Use This Expert-Suggested Solution

Now, after trying all the above methods if you are still facing the Outlook error 0x800ccc1a, then there is a chance that your Outlook PST file is corrupted. Well, you can fix the corruption of Outlook by using Outlook’s own utility that is known as ScanPST.exe. But before using this you need to find where is ScanPST.exe located and once you will able to find the utility.But remember that this tool only minor corruption in Outlook PST file. Now if you need a perfect solution to repair severe corruption in Outlook then, try Outlook PST Recovery Software.

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Conclusion

Outlook error 0x800ccc1a may seem daunting when faced, however, you must not worry. Try out any of the solutions we have shared in this article and eradicate the solution securely. If you want to automate the procedure or your issue is a little complicated for you to resolve with the above-mentioned manual solutions then, try out the expert-suggested software to experience a hassle-free eradication of the error 0x800ccc1a in MS Outlook.