How do I configure a smarthost per domain? Some clients want to use 3rd party outgoing filtering and others don't?

No, no response yet. Apparently I'm out of support tickets and I'm not going to pay to ask a question about how their software works. I thought this is what the forums are for, and am quite disappointed that no one from Smartertools has responded.

 

You can set smarthosts by message priority I believe, so perhaps set a smarthost for priority 8 and set the domains that you want to use that smarthost to send all their emails via priority 8. This is the only workaround I can see, but I haven't had time to test it yet.

Hi Simon,  For specifying what domain users what gateway you are correct that you will want to use priority.  Currently this is the only way to accomplish this.  Here is a link to our knowledge base that will show you how to set it up if you need assistance.  https://portal.smartertools.com/kb/a2967/outgoing-gateway-prioritization.aspx