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One or more folders in your mailbox named incorrectly [FIX]

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Updated onOctober 4, 2023

updated onOctober 4, 2023

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Key notes

Microsoft Outlookis a reliableemailplatform, but sometimes users encounter annoying or even blocking errors when trying to access their mailbox.

One such error is the one that informs users their mailbox folders are named incorrectly:

The name of one or more of your folders includes the character / or more than 250 characters. Folders with names that include this character can’t be downloaded to your IMAP e-mail program. Please rename these folders [name of the folder].

It is worth mentioning that this error often invokes Calendar folders, therefore don’t forget to also check these folders when troubleshooting.

How can I fix incorrect mailbox name issues?

How can I fix incorrect mailbox name issues?

As simplistic as this solution may first seem, users confirmed it worked.

This looks to have worked…  Thanks for your help.  The bit that worked was emptying the Trash folder

Speaking ofOutlook issues, there is an interesting tool out there that promises to fix a series ofOutlookandOffice issues.

TheMicrosoft Support and Recovery Assistant toolcan both fix issues or share information on how to manually perform a fix yourself.

Here’s a full list of the issue this tool can fix:

You might also want to read our article on how to rename the email in Outlook for more information about this procedure.

Freel free to use the comments section below for any questions or suggestions you might have.

More about the topics:Outlook Guides

Madalina Dinita

Networking & Security Specialist

Madalina has been a Windows fan ever since she got her hands on her first Windows XP computer.

She is interested in all things technology, especially emerging technologies – AI and DNA computing in particular.

Prior to joining the WindowsReport team, she worked in the corporate world for a number of years.

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Madalina Dinita

Networking & Security Specialist

Madalina is a Windows fan since forever, especially interested in AI, emerging technologies, privacy, and security.