I'm login WHM, i see Security At this time, it is recommended that all customers using proftpd Switch to pure-ftpd as soon as possible to eliminate a potential security hole. Please note that all released versions of proftpd are belived to be affected and the exact problem is not yet known. Customers who experience the problems switching are welcomed to bypass the normal support procedure and submit a ticket directly at http://support.cpanel.net Severity: * * * * * * * Important Notice (Cwd.so/Ghost Mail Bounces) Users of the BETA pro addon have experienced a problem with a Cwd.so version mismatch problem which causes ghost mail bounces. If you are experiencing this problem, it can be solved by removing the /var/cpanel/version/boxtrapper file (if it exists), then updating cPanel, running /scripts/upcp, http://support.cpanel.net Severity: * * * * * * but i can't fix it. can you help me ? how to fix it.