Our company is looking to build a messaging engine to send customers SMS, Email, Push (non-campaigns), but would like to use Twillio/Sendgrid as the send partner and Adobe as the Template Manager. The normal marketing campaigns would still be managed and initiated in Adobe - but sends of messages is via Sendgrid/twillio.Does anyone have any experience with this? or even opinion?? Can the SubmitNotification function trigger a send without referencing a template? i.e. can you force Html into the d...