There is a time when you can face email errors with Microsoft Outlook regarding failed operation, files cannot be accessed, errors while sending or receiving emails, or other error codes. To get the best and practical solutions for all such errors, you can connect with the Contact Microsoft Help and support team.
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There are several common Microsoft Outlook email error codes and messages that users may encounter. Here are some steps you can take to resolve them:

Error code 0x800ccc0e: This error usually indicates that Outlook is unable to connect to the email server. Check your internet connection and make sure your server settings are correct.

Error code 0x800ccc78: This error indicates that Outlook is unable to send emails. Make sure your outgoing server settings are correct and that your internet connection is stable.

Error code 0x80042108: This error indicates that Outlook is unable to connect to the email server. Try disabling your antivirus software and check your server settings.

Error code 0x8004010f: This error usually occurs when Outlook is unable to find the email server. Check your server settings and make sure your Outlook profile is set up correctly.

"The operation timed out" message: This message usually occurs when Outlook is unable to connect to the email server. Check your internet connection and make sure your server settings are correct.

"Your mailbox is full" message: This message indicates that your mailbox is full and you need to delete some emails to free up space.

"Email address rejected by the server" message: This message indicates that the email server is rejecting the email address you are trying to send to. Double-check the email address and try again.

"The attachment size exceeds the allowable limit" message: This message indicates that the attachment you are trying to send is too large. Try compressing the file or using a file-sharing service to send the attachment.

Regards,
Peter