Instant Messenging

[Paul Armstrong]

Hey Guys,   I was successfully able to setup instant messenging on my Exchange2K server. I have seen posts stating that it should work externally. What ports would I have to have open on my router for this to work, the only reference I have found thus far is just for port 80 but I know there has to be more ports. Also, I have put in a DNS change request to have a dns record for the im domain that I am using (such as im.domain.com).  Please point me in the right direction, TIA!!   List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm