Why was the Outlook integration removed, and will it return?

Hello @DCommercialRealtor ,

At this time, there isn't a direct Outlook to Constant Contact integration for automatic syncing, which is why Zapier is being suggested as the in-between provider. Office 365 still has an integration for syncing available, however for other Outlook programs you'll need to manually export the contacts you want, and then upload those into your Constant Contact account.