I have an internal spam server that is setup on my domain, and I have an outside company hosting my email, as of right now I have the mx record pointing to my outside ip address and my firewall translates that to an inside ip address which is my eprism spam server and then my eprism spam server sends the scanned email back out to the outside mail host and that all works great, but I want to add exchange server 2007 in so that once the eprism spam server gets the mail it sends it to the exchange server, currently I can add clients to the exchange server and I can send mail without errors, but I can't recieve mail to the exchange server, I can telnet on port 25 and ping the exchange server from my eprism spam server. I have the recieve connector on exchange set up like this (under network on the recieve connector---use this local ip address to receive mail-all available ipv4address on port 25 and for the remote server---I have 0.0.0.0-255.255.255.255 and 192.168.1.3 which is my spam server. Exchange is just not recieving mail from my spam server. Any suggestions?

Hi Chris, I hope you have selected Anonymous Users in Permisison Group of Receive connector on Exchange Server to receive mails from your spam server.

I did not have that one check on the recieve connector-should I uncheck all the others exchange users exchange servers legacy exchange servers partners

Also what authentification boxes should be checked

Hi Chris, If it is receiving mails from other Exchange Servers in your environment then you need to select all Exchange permissions. Further Reference: Receive Connectors

Thanks for your help, I have mail flowing now, I had to add my public domain in to allow mail flow, Thanks