uucp permissions

[mel]

After I upgraded from Xenix 2.3.1 to 2.3.2 I started having a problem with 
the uucp port's device driver permissions.  As per the install procedure I set
the port's permissions to:

   crw-rw-rw-     uucp     uucp

with uucp as the group and owner.  Every time mail is sent through this modem
port (either incoming or outgoing) the permissions change to:

   crw--w--w-     uucp     uucp   (NOTE: two reads are "removed")

What is causing this to happen?  Why are the group & other read permissions
being stripped?  How can I "fix" this? I have heard that others are experiencing
the same problem with Xenix 2.3.2 & 2.3.3 which I have since updated to.

Mel Shear
New Orleans, Louisiana  USA
!rex!fleet!mel