OK, Ive tried everything and I still cant get OWA to work externally. Internally no problems, externally all I get is the logon screen. When I input the username and password, it waits a while (up to 5 minutes) then I usually get a TCP/IP Processing error or various other errors. BTW Exchange RPC works out of the box (but is slow for the connections we have) My setup is as follows: dial up connection with static IP address local domain (active directory) : companyname.local dns (forward/reverse) : companyname.local action: exchangname.companyname.com (Ive tried .com and .local and the IP address) destination sets exchangename.companyname.com /exchange/* /public/* /exchweb/* incoming listner: configure listners seperate : external IP address basic authorisation IIS configuration /exchange/,/public/,/exchweb/ basic authorisation default domain (Ive left it blank, Ive also tried with both .com and .local domains here) Regards very frustrated IT Manager/System admin/PC support yada yada yada