I wonder if you can help me out... at the moment were using exim to relay our emails to an smtp_relay.

The only problem is if the user exists and has an email address it won't exit the server and send them mail using our relay.

I need it to go to the relay even if it's an internal email address.

Hope that make sense, this is how we have got our relay setup at the moment

smart_route:
driver = manualroute
domains = !+local_domains
transport = remote_smtp_smtpauth
route_list = * smtp.sendgrid.net:587

Thanks