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after migrating I can no longer define filter rules, as TB states "No available folders" - incoming mails are sorted according to the existing rules into folder
I had to setup a new computer. I moved the profile data as described here. A new folder (just the icon) appeared out of nowhere (it can't be moved, renamed, deleted, etc.)
When I highlight a message and select Message -> Create Filter from message, I can not create a rule to move mail to a folder, as the field where I can select the target folder is grayed and it says "No available folders", which isn't true, I have lots of folders, and existing rules that route incoming mail into the correct folders (which have been defined before the move).
I can not exclude that this isn't related to the move, but to a newer ThunderBird version, as I do not create rules that often.
I use ThunderBird for different mail accounts with different providers.
Chosen solution
Hello,
I found the solution.
For an unknown reason, one of my accounts was defective. I noticed that I did not receive emails from this account and found it that it had turned into that ghost folder.
After deleting this account (and creating a new account instead), I can again create rules as before.
I hope someone from the developers takes a look into this, it's quite embarassing.
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Chosen Solution
Hello,
I found the solution.
For an unknown reason, one of my accounts was defective. I noticed that I did not receive emails from this account and found it that it had turned into that ghost folder.
After deleting this account (and creating a new account instead), I can again create rules as before.
I hope someone from the developers takes a look into this, it's quite embarassing.