I have recently transitioned from Exchange 2000 to Exchange 2007. Everything is working well with my Windows clients. They can send internally and externally. Mac and Ricoh can receive no problem but only send internally. I know i need to create a different SMTP connector. My question is, what is the best way to do this? I see alot of references to allowing specific IP addresses. Is there a way I can just do a blanket connector that will allow any ip on the lan to relay out? Basically I have 4 or 5 macs and no idea what their IP is (they are a different department). Thanks!