Multiple failures due to upstream service provider

Components affected

Litmus Application Litmus Email Analytics Litmus IBM Notes 8.5 (Windows 10) Litmus IBM Notes 9 (Windows 10) Litmus IBM Notes 10 (Windows 10) Litmus Outlook 2007 (Windows 10) Litmus Outlook 2010 (Windows 10) Litmus Outlook 2013 (Windows 10) Litmus Outlook 2013 120 DPI (Windows 10) Litmus Outlook 2016 (Win 10) Litmus Outlook 2019 (Windows 10) Litmus Outlook 2019 120 DPI (Windows 10) Litmus Thunderbird 60 (Win 10) Litmus Plain Text (Text-only view) Litmus Outlook (Android 7.0) Litmus AOL Mail (Explorer) Litmus AOL Mail (Chrome) Litmus AOL Mail (Firefox) Litmus Gmail (Chrome) Litmus Gmail (Explorer) Litmus Gmail (Firefox) Litmus Outlook.com (Chrome) Litmus Outlook.com (Explorer) Litmus Outlook.com (Firefox) Litmus Yahoo! Mail (Chrome) Litmus Yahoo! Mail (Firefox) Litmus G Suite (Chrome) Litmus G Suite (Explorer) Litmus G Suite (Firefox) Litmus Office 365 (Explorer) Litmus Office 365 (Firefox) Litmus Office 365 (Chrome) Litmus GMX.de (Explorer) Litmus GMX.de (Firefox) Litmus Web.de (Explorer) Litmus Web.de (Firefox) Litmus Web.de (Chrome) Litmus Comcast (Explorer) Litmus Comcast (Firefox) Litmus Comcast (Chrome) Litmus Mail.ru (Explorer) Litmus Mail.ru (Chrome) Litmus Mail.ru (Firefox) Litmus T-Online.de (Explorer) Litmus T-Online.de (Firefox) Litmus T-Online.de (Chrome) Litmus Yahoo! Mail (Explorer) Litmus GMX.de (Chrome) Litmus Outlook 2016 120 DPI (Windows 10) Litmus iPad Pro (11 inch) (iOS 13.1) Litmus Outlook Office 365 (Windows 10) Litmus Outlook Office 365 Dark (Windows 10) Litmus Gmail App (Android 10.0) Litmus Gmail App Dark (Android 10.0) Litmus Outlook.com Dark (Chrome) Litmus Outlook.com Dark (Firefox) Litmus iPad Pro (12.9 inch) (iOS 13.1) Litmus iPad Air (4th Generation) (iOS 14.2)