We have a RESTlet written in Suitescript 1.0 which performs an nlapiSendEmail however it is not working and NS is saying they are getting the error "Not Sent: Routing Policy". NS are telling us that we need to setup DKIM policy, however we can send emails from client and server scripts. Has anyone else encountered this and have a simple solution?

@Chris Deakin I heard from NS support that they are going to make DKIM policy mandatory from coming releases.

@Karthik, thats interesting, we've never set it up, is it difficult?