I'm using the same sudoers file for all hosts. Out of 35 hosts, 14 are CentOS 5, the rest are CentOS 4. There are mixtures of MTA's on both platforms but the behavior is consistent. Here is the snip of my sudoers: Defaults mail_always Defaults mailto="mail at domain.com" Works fine in CentOS 4, doesn't even produce a blip in the maillog in CentOS 5 on all servers. Outbound mail tested and working on all boxes. Does anyone else see this behavior?