Does "dovecot" have anything similar to the UW IMAP "mailadm" group operation? From near the end of:
http://www.washington.edu/imap/documentation/RELNOTES.html
'Support for SASL authentication identity vs. authorization identity in the IMAP and POP3 servers. If the user indicated by the authentication identity is in the "mailadm" group, he may specify any authorization identity and get logged in as the authorization identity user.'
This allows an email administrator (member of group "mailadm") to sort out problems in a user's mailbox as that user identifier. (We try to train our users not to reveal their password to anyone, not even to our own staff. But sometimes, as staff, it is very useful to be able to do operations as a particular user to diagnose a problem.)
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