Can you create a scenario in integromat that will email a survey123 report if using Portal for ArcGIS?
Yes. Check the Connecting to Enterprise and Creating Reports sections in this article: https://community.esri.com/groups/survey123/blog/2019/06/04/survey123-tricks-of-the-trade-integromat
Also check the Enterprise section in https://community.esri.com/groups/survey123/blog/2019/07/23/understanding-survey123-feature-reports to understand limitations when using Survey123 reports against ArcGIS Enterprise.
