Connect to the transactional email servicebus queue from CRM.

Hi!

I am trying to connect to the MDM transactional email servicebus queue from whitin CRM. I have created a workflow that automatically sends the RecipientEmailAddress and the email template id to the servicebus queue when a new contact is created. This works fine when the CRM is Onpremise, unfortunately it will not run on CRM Online. I imagine it might be because of some restrictions in the sandbox environment. So far I have been using the Microsoft.Servicebus.dll library located in the MDM SDK to connect to the transactional email queue.  

So my question is; Is there an alternate way of sending information and trigger an transactional email in MDM from within CRM? 

Thanks