Rick Block wrote : > Anyone have any suggestions for how to handle the following? > > The server I work on is primarily a voicemail server, although > since it supports both IMAP and SMTP it also supports email. > Historic voicemail UIs disallow forwarding for "private" > messages (which doesn't prevent a determined user from, for > example, re-recording a "private" message). "Sensitivity:" is > the obvious choice for indicating a message is private in an > IMAP/SMTP universe. Our customers would like some assurance > (perhaps server configurable) that "private" messages will > not (easily) be forwarded. Should we: > > 1) completely disallow IMAP access in configurations where > non-forwarding of private messages is desired?
that can be a standard possibility > 2) implement some proprietary mechanism by which clients > can indicate they do not allow forwarding of private messages > and allow access to only these clients? maybe you could implement some command : 01 FETCH 5 (FLAGS) 02 XENABLEFETCH 02 XENABLEFETCH OK 03 FETCH 5 (FLAGS) * ... 03 FETCH OK or something like that. In fact, to avoid forwarding of message, you have to disable the FETCH command. Then, no possibility to read e-mails. People can still forward with copy-paste or other tricks. -- DINH V. Hoa, etPan! - newsreader, mail user agent -- http://libetpan.sf.net/etpan
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