vaclook man page
vaclook — browses .vacation.db and shows addresses
Vaclook browses the ~/.vacation.db file and shows the addresses that have been replied to, as well as the time/date of the most recent 'vacation' reply to each address.
firstname.lastname@example.org: Sat Nov 20 00:39:51 1999
vaclook is Copyright (c) 1995 Jeff Uphoff, National Radio Astronomy Observatory Charlottesville, VA, USA (email@example.com).