New Mail Folders only appear for a moment and then disappear.

Question

New Mail Folders only appear for a moment and then disappear.

I am using mail on a Mac running Catalina. One of my three IMAP email accounts will not let me create new mail folders or subfolders. I go through the usual process - New Mailbox, set location, type in name. the new folder appears for a moment in the appropriate place in the Mailboxes sidebar and disappears. I have checked all the settings I can find.

I can create folders and subfolders as per usual in the other two email accounts.

Apart from this, the problem account seems to be working fine.

Anyone got any ideas?

Graeme.

iMac 27″, OS X 10.11

Posted on Nov 24, 2021 1:04 AM

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Answer 1

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PRP_53

Level 10

86,773 points

Nov 24, 2021 3:14 AM in response to Grubby Fingers

That would be correct if the mail Server was configured for POP.

But, as this is IMAP - the folder are actually on their Server and message received remain on the Server until the user Deletes the messages or folders.

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Answer 2

Nov 24, 2021 2:54 AM in response to PRP_53

Thanks for your response. My understanding of IMAP accounts is that mail folders are residing on my hard drive, not on the servers' drives, so any folder issues would be localised to my computer. Does that sound right to you?

Graeme.

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Answer 3

Nov 24, 2021 1:41 PM in response to PRP_53

Thanks, P. Phillips. I had that arse-about. I logged into my webmail server and, sure enough, when I tried to create a subfolder there I got an error message saying I had reached the maximum number of folders.

Time to consolidate some of those folders!

Thanks for your help.

Graeme.

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