Setting Up Mail Security

By default, security permissions on a /var/mail directory allow read, write, and execute access to the owner, members of groups to which the owner belongs, and all others. On Solaris 2.x mail servers, you can make a /var/mail directory more secure by changing its default permissions to allow only read and write access to anyone outside the owner's groups, as long no SunOS 4.1.x mail clients are connected. For more information about changing directory permissions, see the System Administration Guide.