EXM Throws NonCriticalException "Failed to download string content" with Nested Exception of "403 Forbidden" in Azure Web App
Upon previewing email content in Azure Web App, one could get the following error: 9668 03:27:56 ERROR Exception: Sitecore.EmailCampaign.Model.Web.Exceptions.NonCriticalException Message: Failed to download string content, URL: https://testazure-cm.azurewebsites.net/?sc_itemid=%7B229384AB-6279-42BC-925F-1D28C0227C03%7D&sc_lang=en&sc_device=%7BFE5D7FDF-89C0-4D99-9AA3-B5FBD009C9F3%7D&ec_database=master&ec_id=96F0189C036942DDA62BCE8D68C6D1C7&ec_message_id=583137BAD51D4491AD8D07451BCC9000, Use IIS Credentials: True, UserAgent: ECM Dispatch Source: Sitecore.EmailCampaign at Sitecore.Modules.EmailCampaign.Core.WebContent.DownloadString(String url, Boolean useIisCredentials, String userAgent) at Sitecore.Modules.EmailCampaign.Messages.WebPageMail.GetMessageBody(Boolean preview) at Sitecore.EmailCampaign.Cm.MessageInfo.FillContentEditorInfo() Nested Exception Exception: System.Net.WebException Message: The remote server returned a...