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The master Archive folder has one unread message that won't go away.

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I'm running Thunderbird 52.9.1, and I'm viewing my email folders in Unified view.

The "Archives" master folder has three sub-folders, one for each email account I view on Thunderbird. All the messages in all of the subfolders are marked as "Read," and the sub-folders appear in lightface.

The master "Archives" folder name appears in bold, and it has a (1) next to it, indicating that there's an unread message in it.

I don't want to post a screenshot and publicize my email addresses, so here's a replication of what I see:

Archives (1)

    emailaddressA
    emailaddressB
    emailaddressC

How can I get this incorrect "unread message" marker to go away?

I'm running Thunderbird 52.9.1, and I'm viewing my email folders in Unified view. The "Archives" master folder has three sub-folders, one for each email account I view on Thunderbird. All the messages in all of the subfolders are marked as "Read," and the sub-folders appear in lightface. The master "Archives" folder name appears in bold, and it has a (1) next to it, indicating that there's an unread message in it. I don't want to post a screenshot and publicize my email addresses, so here's a replication of what I see: <b>Archives (1)</b> emailaddressA emailaddressB emailaddressC How can I get this incorrect "unread message" marker to go away?

All Replies (2)

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Select the folder and go to View-Folders-Unread to see if you find the message. Then put it back to View-Folders-All.

If nothing shows up then something is out of sync so do the following... Right click the folder and select Mark Folder Read.

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The folder "Archives is in the Unified view. I'd already tried the first suggested remedy, and the second isn't possible; "Mark Folder Read" is not an option on the right-click menu.