Users must be aware that computer networking is inherently insecure, and that all traffic that they place on the network (including electronic mail) is capable of being read by third parties, and conduct themselves accordingly.
Users should publicise their e-mail addresses in the form crsid@cam.ac.uk. This will permit the easy diversion of your e-mail to other servers should you move your allegiance to departmental e-mail servers. This is particularly important for postgraduate students.
In order to implement the above recommendation, users should specially configure their e-mail program so that:
- either the "From:" header shows the message as coming from crsid@cam.ac.uk
- or the "From:" header shows the actual source (e.g. crsid@XXX.cam.ac.uk) and an extra "Reply-To:" header shows an address crsid@cam.ac.uk.
The former option is less likely to cause confusion.