Top 15 annoying Outlook errors & their solutions

by Teodor Nechita
Teodor Nechita
Teodor Nechita
Software Managing Editor
Eager to help those in need, Teodor writes articles daily on subjects regarding Windows, Xbox, and all things tech-related. When not working, you may usually find him either... read more
Affiliate Disclosure
  • Outlook is one of the world's most well-known email clients. The article below will cover the top 15 most common issues found when using it.
  • This includes error codes 0x8004060c and 0x800ccc0e, or the Disconnected message issue.
  • If you frequently encounter similar problems on your PC, visit this Windows 10 Errors section too.
  • To read more about this practical Microsoft tool, take your time to check out our Outlook Hub.
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Microsoft Outlook is a personal information manager from Microsoft, but you probably know it as the email client that comes with the Microsoft Office Suite.

This software tool is highly regarded by the community, but it also faces its fair share of criticism due to the frequent bugs.

We’ve compiled a list of the most common issues users face when using this tool, as well as the methods used to overcome them.

This includes error 0x8004060c, 0x800ccc0e, or 452 4.5.3 Too many recipients and opening issues.

How can I fix common Outlook errors?

1. Try third-party alternatives

The below list of issues is clearly frightening. You’re most likely used to Outlook, yet this doesn’t mean that you shouldn’t consider trying out a different email client.

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On top of that, unlike Outlook, it gives you the chance to enjoy a unified inbox for all your messages, unified folders, along with a quick preview of attachments and speed reader features.



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2. Error code 0x8004060c

fix error code 0x8004060c
This error usually appears when the user tries to send or receive emails, thus rendering Outlook functionally useless.

It is usually caused by oversized PST files that are above the max mailbox storage size for Outlook. In order to fix error code 0x8004060c, follow this step-by-step guide.

3. Error code 0x8004010f

Like the previous error, Error code 0x8004010f also happens when you try to send or receive emails.

Error code 0x8004010f is usually triggered due to corrupted Outlook user profiles. In order to fix error code 0x8004010f, follow our comprehensive guide.

4. Error code 0x800ccc0e

Whenever you get an error code 0x800ccc0e, you know that you are having issues with one of these services:

The error is caused by a conflict between the SMTP servers and when the user tries to send an email without properly configuring their account.

For a list of efficient troubleshooting methods, please refer to this dedicated article.

4. Error code 0x80042109

Error code 0x80042109 is yet another error code triggered by users trying to send or receive emails.

This error also appears because of a communication error between the SMTP servers. In order to bypass this issue, please read up on this quick article for a list of fixes.

5. Error 452 4.5.3 Too many recipients

This error occurs when you try to send an email to multiple recipients, and it happens when a distribution list is too big.

For a list of solutions to this issue, check out this simple guide for more information.

6. Error code 0x80042108

fix error code 0x80042108
This error message appears whenever you try to send or open a message.

Error 0x80042108 can be caused by corrupted PST files, third-party antivirus or firewall software tools, Outlook’s configuration settings or an incomplete installation of Microsoft Office.

Check out this useful article for more information about it and how to fix it so that you can continue your work and your business doesn’t get affected.

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7. Error code 0x800CCC13

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Error code 0x800CCC13 is yet another error that appears when a user tries to send, receive, or open an email.

This error can be caused by multiple reasons, such as corrupt PSt files, third-party anti-virus or firewall software, an outdated installation of MS Office, etc.

For more information on how to fix this error, check out our in-depth guide.

8. Error code 0x800ccc0f

Error 0x800ccc0f is one that occurs for some users when sending or receiving emails.  Most often than naught error 0x800ccc0f occurs when SMTP emails aren’t sent or received.

In order to fix this issue, head over to our detailed article on the matter.

9. Error code 20

Error code 20 is triggered when users try to send emails. Unlike the previous articles, this one is caused by an inability to communicate with the proxy server.

For more information on how to fix error code 20, check out our step-by-step guide.

10. Outlook client shows a Disconnected message

This issue usually occurs when users try to go back online after working with Outlook in offline mode.

In order to make Outlook appear online again, check out the troubleshooting methods listed in this comprehensive guide.

Are you just plain bored of Outlook? Check out these great alternatives we’ve selected!

11. An unknown error occurred on Outlook

This enigmatic error is triggered when sending, receiving, opening, or deleting emails. While not exclusively, it is usually caused by a corrupted PST file.

For a complete guide on how to fix this unknown error, follow this dedicated article.

12. The operation failed. An object could not be found

Like most other errors on this list, this error occurs when you try to sending, replying, or forwarding emails.

The list of solutions is quite small, and they can be found in this quick guide of ours.

13. The modified permissions cannot be saved

This issue happens when trying to edit the permissions on a shared calendar, and it is also triggered when trying to remove an old entry from the list of users.

For a detailed guide on how to fix these issues, check out this comprehensive guide.

14. Outlook won’t open in Windows 10

fix Outlook won’t open
This issue is pretty self-explanatory, as sometimes Outlook will simply refuse to launch in Windows 10.

In order to quickly fix this bug and make Outlook launch again, head over to this step-by-step article.

15. Outlook cannot log on

This error is similar to the previous one, only that Outlook does launch, but refuses to log in.

Most of the solutions revolve you managing your profile in one way or another. For a detailed guide on how to fix this troublesome error, head of to this dedicated guide on the matter.

Were the above Outlook tips helpful? Let us know in the comments area below.

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