[Donnieclark]

The current operation on (eg) "inbox" [or so other folders] did not succeed. The mail server for the account XXX responded: Command error. 12 The functionality of Thunderbird does not seem to be affected. Thus, is it a hoax meassage or something serious, since it comes and goes without any regularity ...? Somebody who knows what this error message means? 

Any idea?

Please help.

Thanks!



I did not find the right solution from the internet.


References  https://support.mozilla.org/en-US/questions/1064915

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