IPhone Exchange calendar sync

[skicamel]

Nutshell version. We've got an Exchange 2003 mail server behind our firewall. The IP is not externally routable. We do not have an ISA server.

We have webmail working through a DMZ'd server that port-forwards through to the mail server.

As is, does anyone know of a way to get the Exchange calendar data to push to an IPhone without exposing the mail server to the public?

Side note, we had multiple issues trying to get port-forwarding to work for this, key being the certificate is not recognized on the externally routable DMZ'd computer, as it's just passing the data on. If the cert is on the internal server, the cert is essentially garbage, as it doesn't recognize itself as the externally routable address. Ideas?

 

[58sniper]

reverse proxy like ISA. Port forwarding is not giving you any real security.

Pat Richard MVP
Plan for performance, and capacity takes care of itself. Plan for capacity, and suffer poor performance.

http://www.ucblogs.net/blogs/exchange/

 

[skicamel]

Thanks for the answer...

Have you (or anyone else out there) successfully set up full syncing with an IPhone using a reverse proxy other than ISA? Recommendations? It's been a few years, but I'm planning on setting up a Linux box w/ Apache. Would you recommend utilizing mod_proxy, or could you recommend any other reverse proxies (Windows or Linux) that have had success with calendar pushes to an IPhone? Key component = 'free'.

 

[58sniper]

'free' means you aren't likely going to get one that tears down the SSL packets, inspects them, and repackages them before sending them to the internal network. In otherwords, less secure.

Pat Richard MVP
Plan for performance, and capacity takes care of itself. Plan for capacity, and suffer poor performance.

http://www.ucblogs.net/blogs/exchange/

 

[skicamel]

Preaching to the choir... New CFO came in a few months ago with shiny new IPhone (BES server working out wonderfully for all the Blackberry folk), will not approve any spending, & swears up & down he has friends that could make this work without any further expense. Note there are now 3 IPhone users from a little over 400 employees. We argue your point, I.S. boss on a monthly basis agrees the security is more important & it will cost to do this right...until the next meeting with the CFO, prompting new meeting in which "friend that can make this work" is quoted extensively... More research, repeat. *sigh*