theres no real logging dedicated to monitoring this specifically, but you can tell when it's used. Theres entries in the /opt/zimbra/log/mailbox.log like this
2010-02-03 23:15:47,869 INFO [btpool0-7919] [name=admin@domain.com;mid=2;ip=192.168.93.2;ua=Zim braWebClient - FF3.0 (Linux);] misc - delegated access: doc=DelegateAuth, authenticated account=admin@domain.com, target account=someuser@domain.com
so you could probably do some greppign to figure out when it's used and who it's used for, and whos doing it |