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Outlook can't send mail in Windows 10: error Ox800CCC13

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› Outlook › Outlook can’t send mail in Windows 10: error Ox800CCC13

Last reviewed on February 8, 2018     286 Comments

We're seeing a few errors from Outlook users after upgrading to Windows 10, specifically a message reporting problems sending messages. The affected users receive error 0x800CCC13.

'Task 'email address alias@domain.com- Sending' Cannot connect to the network. Verify your network connection or modem.'

Microsoft is looking into it, but one fix we know works is to open a command prompt as an administrator and run sfc /scannow. Reinstalling or repairing the Office install, making new profiles and other common troubleshooting steps will not fix this issue.

To use the System File Checker right click on the Start button and select Command Prompt (Admin). (You'll need to click Yes to allow it to make changes to the computer.)

right click and choose Command Prompt (Admin)

When the Command Prompt appears, type (or paste) sfc /scannow then hit Enter (there is a space between sfc and /).

run dfc /scannow

Once System File Checker is finished, reboot the computer.

Users are reporting that System File Checker reports corruption in mlang.dlI.Mui and Windows.Media.Speech.UXRes.dll.mui. SFC replaces the files and after a reboot, Outlook works again.

Outlook can't send mail in Windows 10: error Ox800CCC13 was last modified: February 8th, 2018 by Diane Poremsky
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About Diane Poremsky

A Microsoft Outlook Most Valuable Professional (MVP) since 1999, Diane is the author of several books, including Outlook 2013 Absolute Beginners Book. She also created video training CDs and online training classes for Microsoft Outlook. You can find her helping people online in Outlook Forums as well as in the Microsoft Answers and TechNet forums.

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Jessica Lee (@guest_213894)
September 12, 2019 2:08 am
#213894

I have faced the problem where I couldn't send mail from outlook in Windows 10. Then I was going through the internet searching for the perfect solution of the error. But after seeing your blog I was satisfied with the way of explaining the process of how to fix the error.

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Roger Smith (@guest_213840)
August 30, 2019 1:32 am
#213840

Got the proper solution thankyou so much!

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Obed (@guest_210691)
March 23, 2018 7:40 am
#210691

This solved my problem thanks

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Aurelia Okino (@guest_210667)
March 18, 2018 12:28 pm
#210667

My Windows version is Windows 7 - Outlook 2016 after upgrading from Outlook 2007 can't send mail from any profiles. Looking forward to that Microsoft update to fix this problem

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Laverne CADLE (@guest_209644)
December 13, 2017 1:04 pm
#209644

I recently update windows 10 - I also bought and installed Office 365 - my Outlook mail will no longer allow me to RECEIVE I can send but I have to hit the FORWARD cause the Send button is not there - I have repaired I have Changed the setting in control program for incoming and outgoing made sure ports were right numbers repair, rebooted, I am stumped I dont know what to do next HELP

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Diane Poremsky(@diane-poremsky)
Author
Reply to  Laverne CADLE
January 4, 2018 12:43 am
#209854

Have you tried adding a new account (or removing your account and adding it back)? No Send button usually means there isn't an account or outlook doesnt 'see' the account because of corruption.

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Pat Thompson (@guest_209535)
December 2, 2017 9:53 pm
#209535

I cannot send/receive any emails in my outlook account. Keeps prompting me to enter my password. I didn't even know I had a smpt and imap password. What can I do? Thanks!

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Diane Poremsky(@diane-poremsky)
Author
Reply to  Pat Thompson
December 3, 2017 9:14 pm
#209543

The password should be the same for both, but if outlook has problems connecting, it will ask for both. Did it work as expected before? it could be a temporary problem with the internet or the mail server.

Do you use two factor authentication on the account? if so, you need to use the app password in outlook.

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JOHN OGUNBAYO (@guest_206096)
April 30, 2017 11:59 am
#206096

error Ox800CCC78"
I have tried ''sfc /scannow'' twice They both stopped at 57%

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Diane Poremsky(@diane-poremsky)
Author
Reply to  JOHN OGUNBAYO
April 30, 2017 10:51 pm
#206099

Did you try making a new profile?

If you use 3rd party security software that installs outlook addins, try restarting outlook in safe mode - if it works ok, then an addin is the likely cause, 3rd party security addins are often the cause.

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Alan Cooper (@guest_205344)
March 18, 2017 4:01 am
#205344

The scan worked and problem solved...many thanks.

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