search for: destination_group

...SQL or in a berkeley db file. The downside to this is that the file needs to be readable and writable to everyone, so if users have shell access the users could break the file. They dictionary would contain data in format "<destination_user>/<sharing_user>" = 1 and "<destination_group>/<sharing_user>" = 1, ie. the value would be ignored and only the existence of the keys would be important. Then iterating through "<my_username>/*" and "<all_my_groups>/*" would list the users who probably have mailboxes where I have access to. b) Use...