An e-mail sender client accesses an e-mail message and sets an associated "eyes-only"
indicator indicating that functions that limit the opportunity to disseminate e-mail
messages are to be applied to the e-mail message. The e-mail sender client then
encrypts the e-mail message, and dispatches the e-mail message to the e-mail reader
client in encrypted form. Upon receipt, the e-mail server determines that the e-mail
message has the eyes-only indicator set. In response, the e-mail server verifies
that the e-mail reader client is capable of implementing the "eyes-only" functions
and authenticates the user of the e-mail reader client as being an intended recipient.
The e-mail server then transmits the encrypted e-mail message to the e-mail reader
client. Upon receipt, the e-mail reader client determines that the e-mail message
has an associated "eyes-only" indicator set, and then applies the appropriate "eyes-only"
functions to the e-mail message.