Sending Email Through Exchange Web Services Asynchronously

Our web solution (a web role hosted on Azure) currently sends emails through Office 365 using EWS using the SendAndSaveCopy

MSExchange.EmailMessage

.

Is it possible to do this as an Async task?

NOTE. The full refactor will enqueue emails and will have a workgroup role action, but I was curious if EWS also has Async options for sending emails as all my research has been omitted.