Hi! The way to solve this issue is to download the Microsoft Outlook app instead of using the web version. I did many tests, and when you respond using the Outlook app it works 100% of the times. - The issue only occurs with the web version. 

Hi! The way to solve this issue is to download the Microsoft Outlook app instead of using the web version. I did many tests, and when you respond using the Outlook app it works 100% of the times. - The issue only occurs with the web version.

Hello. Have you found any solutions for this? Does it only happen with the Outlook web app? Have you tried using the Outlook app installed on Windows or on a Mac? - And has Shopify responded?Thank you