You can install the vacation module for imp(the webmail). Then each user can turn on and off whatever auto-reply messages they want(doesn't have to be vacation). There is also a forward module, but my users didn't have a need for that. I also have the calendar, todo, memos, and bookmarks(non-editable) all working great. I hope to see SME install the latest version of IMP(when it's out of CVS), since it adds lots of nice features: shared calendars, shared todo lists, shared memos, groups in the addressbook, improved the e-mail(compose html e-mail, forward multiple messages from the inbox screen, etc... Check out
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