The message "RE:[EXTERNAL EMAIL] "........" Could not be moved to the mailbox "mule......."

Mail was unable to open this mailbox on the server "mail......."

The server returned the error:Client tried to access nonexistent namespace namespace (Mailbox name should probably be prefixed with : INBOX>)(0.000 + 0.000 secs).

iMac 27″, macOS 10.15

Posted on Jun 15, 2020 11:03 AM

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1 reply

BDAqua

Level 10

250,259 points

Jun 15, 2020 12:11 PM in response to janet221

Janet, log into your WebMail in a Browser & see where that folder really is, and is this a Rule moving it or by hand?

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The message "RE:[EXTERNAL EMAIL] "........" Could not be moved to the mailbox "mule......."

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