Hi Everyone, I am having a similar problem. I have created a map and operations view on ArcGIS.com. I created the arcgis-collect schema link as stated in the documentation. When I click on the link on my phone, I get "Web Page Not available. The web page at email://UrlBlockedError.aspx might be temporarily down. My phone is a Samsung Nexus with Android 4.1.1. I also tested that same email on a different Android phone and I get the same error. Collector is already installed on both devices. I did make sure that Collector was running in the background before I clicked on the link.
My user account on ArcGIS.com is different from my gmail account on my Android phone. However, on my phone I went into Settings > Accounts and added my ArcGIS.com account as an "ArcGIS" account, pointing to my Organization's URL (which was listed in my profile on ArcGIS.com). It authenticated correctly and shows up in the list. I don't think the account has anything to do with my error, but I wanted to state that on here anyway.
The format of my link that I sent to my Android via email:
arcgis-collect://www.arcgis.com/sharing/rest/content/items/b5c7b23eb70449e4910c1bcd3a79e189/data
Am I missing a step? Is there another way to access my Web Map in the Collector App?
Thank you!
Ian