Using the transfer function in WHM to move domains from an Ensim server to my cPanel server I get extraneous FTP accounts like sshd@nmffg.com (/dev/null) that can't be deleted.

Ensim creates about 1/2 dozen accounts like this that I don't need but when I try to delete them I get

Not Found

The server was not able to find the document (./frontend/monsoon/ftp/realdodelftp.html) you requested
Please check the url and try again. You might also want to report
this error to your webhost.

How do I delete the FTP accounts I don't want?