Has anyone here have any knowledge on allowing a php based email client access to an exchange server that is behind an ISA Server? I am asking here because I need to here from people who have managed to allow their php script to do this. I really need help on what I have to do to the ISA server to allow access to a specific mail box using IMAP.

    you have to set the permissions in ISA, this is not all related to anything regarding PHP. That is a rule problem.

    Grant incoming access to the IMAP port in ISA from what ever server you are running the webmail client on. This should solve your problem. I would also create a port 80 incoming access rule that allows those connections from the server the client is on as well.

    Hope that helps. BTW buy a $100.00 pentium 3 crap computer, put fedora, suse, debian or madrake on it and use shorewall as ur firewall. Its easier to configure and a lot more trust worthly then ISA.

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