Hi Karyn,
Our ideas portal is at ideas.ringcentral.com, could you please post this feature request there? This will allow other customers to vote on it. Thanks!
@Jessica-Community_Moderator , Please have the ideas team combine the requests to integrate with On Premise Exchange. The RC App only gives support for MS365 and Google. Being forced off Ring Central Meetings which showed the meetings in the app has made this a bear to deal with. There are lots of individual requests for this on the Ideas boards and doesn't look like any of them are under consideration, planned or in development. This is an absolute must have for many who don't use these cloud services for email. This needs attention very very soon.