na ssh is ook sendmail aan de beurt 
http://www.sendmail.org/8.12.10.html
http://www.sendmail.org/8.12.10.html
Sendmail 8.12.10 is available; it contains a fix for a
critical security problem discovered by Michal Zalewski. Sendmail
urges all users to either upgrade to sendmail 8.12.10 . Note: this
is a different problem than earlier problems. For those not running
the open source version, check with your vendor for a patch. If you
use the commercial version from Sendmail, Inc. then please see the
download page.