Greetings,

I currently have Horde4 groupmail installed and operational on Lighttpd with the Dovecot IMAP backend for email and authentication. I've been working on trying to improve IMP's performance when loading new messages that have not yet been viewed and cached. I've been able to get it down to about 3 seconds, which I understand is pretty typical because that's how long it takes to establish a new IMAP session and download the message.

Although 3 seconds is good, when my users want to look through several new messages quickly, it's really not that great, especially when comparing the performance with Google Mail and Outlook Web Access.

Getting to the point, I've noticed that once a message has been viewed and cached, going back to that message later is instantaneous. Does anyone know if it's possible to configure IMP to pre-cache all the messages in the current view? Ideally, it could quickly load and show the user's message list and then proceed to download the messages in the background. I realize that this will obviously take more server resources, but that's a trade-off we can make.

Thanks.

--
Mat



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