It sounds like Squirrelmail 1.5.x may finally be only pulling the headers
for a single "page" of index data? If so, I need to investigate it.. :-)
Given the GUI nature of RC, I'm not sure how practical that is. Unless
you allow scrolling right away, perhaps with dummy data, and dynamically
fetch the entries you need to show for the current page, as you scroll to
them; and used some kind of persistent connection from the client to the
server, to avoid bashing the imap server.
I don't know how either are polling the database, but shouldn't RoundCube
only be querying a maximum of the "rows per page" setting under Personal
Settings each time you navigate to or in a folder? I hate to think it is
retrieving thousands of messages and then only showing me 40 each time I
touch something...
... and they use a persistent
connection (but that's cheating, since they aren't a web app).
You can have a partially-persistent imap connection if imapproxy is used on
the backend, or are you talking Apache's not-persistence?
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