Does one Email Router can be utilized for multiple Organizations in single Instance

Hi All,

Thanks for watching my question.

We are in process of installing Email Router on CRM 2013 on premise, integrate with Exchange online.

Currently we have two Organizations on single instance.

Is it possible to establish same Email Router for multiple organizations. If allowed, do we have to set separate record in Deployments tab.

Please guide me in this.

Advance Thanks.