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<font face="Verdana">Running currently two local mailclients:
Outlook 2021 and Thunderbird 102.4.2<br>
<br>
When using TB and remove a message on my main account, I get this
error: <br>
<br>
[CANNOT] Mailbox isn't a valid mailbox<br>
<br>
</font><font face="Verdana"><font face="Verdana">On any other TB
configured email accounts I can remove messages without any
problems.<br>
First I thought that Outlook might block removal on messages,
but the issue appears as well if I close that mail client.<br>
<br>
Can you tell what is causing this problem?<br>
<br>
Best regards,<br>
Jos Chrispijn<br>
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