[IMAP] Creating or updating folder '/Junk E-mail' failed due to the following error: The folder name field accepts alphabets, numbers and underscore characters only

I received a Junk email, which I wanted to block the domain and created a rule which moves emails from any address on this domain to Junk in future.

But my eM client created a rule by which it was trying to create a new folder on my Mail Server (Rediffmailpro) by name “Junk E-mail”.

Since Rediffmailpro doesn’t support folder name creation with blanks, it is blocking the folder creation and I am continuosly getting this error message on my eM Client.

I removed the rule from the eM Client, but still this message is regularly coming, which is very bothering. Can someone advise how to remove this setting permanently?

We are also facing the same problem. Can anyone suggest how to remove that