This is a snapshot of the Project Athena Zephyr notification system. Zephyr allows users to send messages to other users or to groups of users. Users can view incoming Zephyr messages as windowgrams (transient X windows) or as text on a terminal. Zephyr can optionally make use of the Kerberos version 4 security library or the Hesiod service name resolution library. Bug reports or patches should go to bug-zephyr@mit.edu. Please do not send questions about snapshots; they are not supported. To find out how to configure, build, and install Zephyr, read the file INSTALL. To find out how to operate a Zephyr service, read the file OPERATING. To find out how to use an existing Zephyr service, read the file USING. Please read the file NOTES before making any modifications to the source tree. --Greg Hudson ghudson@mit.edu