In an effort to protect a particular user from themselves, we were wondering if it is possible to allow them to create and modify contacts, but never delete them. For example, might the following work?

#zmmailbox -z -m mfg /Contacts account rwix
The user claims contacts are disappearing, but no one else is having any issues. We thought that taking delete rights away might at least tell us something.

Has anyone had to do anything this nutty? If so, how did you handle it?