I have an Ubuntu VPS/slice at Slicehost. Right now I use Exim (Exim4) as my mechanism to send email. I don't receive email on my slice; I only send email (for example, if someone leaves a comment on my blog, an email is sent to me telling me so).
I have a /etc/exim4/passwd.client file that has my credential information for sending the email, of the form:
Does anyone know a way how I can have multiple target mail servers depending on the website/domain visited? For example, I have one target mail server for when someone leaves a comment on my blog and another when sending out an order confirmation to someone.