Webmail application that doesn't abuse the IMAP server?

[Gary Mills]

Does anyone know of an e-mail web application that doesn't abuse the
IMAP server by making short connections?  Most of them simply connect
and disconnect with each HTTP transaction.  Is there one that behaves
the same as an IMAP client, using one connection for the duration of
the session.  An IMAP proxy is not adequate because most of them only
cache TCP connections and perhaps authentication.  These are generally
not the source of most of the transaction overhead.

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-Gary Mills-    -Unix Support-    -U of M Academic Computing and Networking-