Remove this package from the repository as unsafe, until it's fixed

After I installed mailutils-imap4d and configured Thunderbird for 
localhost mailserver, I noticed that Thunderbird started to work very 
slowly.

Later I noticed that it shows all folders of my home directory 
/home/USER as subfolders of the localhost IMAP server.

That behavior is bizarre, not only because it slows down Thunderbird, 
but mainly because this opens several kinds of security risks:

- Deleting folders in /home/USER by incident (I really started to delete 
them, not understanding that I am deleting actual /home/USER files!)
- Undesired reveal of directory structure in screenshots
- Probably others

The second item is really bad.

Probably, the same concern is for mailutils-pop3d package.