I'm using office 365 and I want to send email though my WCF service. 
I'm positive I've got the settings right in my web.config, but now I'm reading I might need a smtp relay like described below:
http://www.configureoffice365.com/configure-office-365-smtp-relay/

Do I need a relay to send through IIS?
I thought I could just put in my smtp connection in the web.config of my wcf service and everything would be ok.  I'm getting an actively refused error when I try to send.  I'm somewhat new to this, so can someone point me in the right direction?
...

Go to the complete details ...