Cannot connect to mailbox - MAPI problem and FW?

[nuzzy]

Hi all,

We just set up our servers to use static 1:1 NAT. Users from the outside the firewall can connect to the external IP using POP3, IMAP, OWA and SMTP fine as well as users behind the firewall using the NAT'ed internal IP can can connect fine to those protocols as well. However, external users cannot connect to their Exchange mailbox and even when using VPN to get back to the internal network they cannot either. I'm assuming MAPI needs a way to get thru the FW as it seems to be blocked. Any ideas? I'm thinking we'll have to statically map ports thru the firewall and add those to the Exchange server registry.

 

[BigFunkyChief]

I think you'll want to run RPC over HTTP. Check out this link:

http://www.microsoft.com/technet/pr...Ref/299d31e0-469f-4ce1-8144-1eb4b657d932.mspx

BFC

"Rule #1 - When stumped, check your Event Logs!

 

[nuzzy]

Thanks...are there any other options? Also, sorry for posting this in the Windows section...I thought I was posting in the Exchange section...if an admin can move it then great.