On 04/09/2012 12:02 PM, Bowie Bailey wrote: > On 4/9/2012 2:49 PM, Tom Bishop wrote: >> Yup, I feel good about our antivirus front, that is installed and all up to >> date, what I am after now is a simple, yet effective smtp relay/gateway to >> go to exchange server 2010. > Whatever you do, your front-line mail server MUST be able to reject > invalid email addresses for your domain. If you just pass the whole > domain through to exchange, then you are going to be generating > backscatter spam when exchange rejects the invalid users. > Yes, I would agree with this, so you end up having to create local accounts anyway, unless you link postfix into an active directory server and I wouldn't suggest this unless you have a fair amount of experience and time to figure out how to do it. Nataraj