Our corporate IT Outlook team found the issue and are trying to fix. Apparently, Microsoft was flagging the embedded URL as a potential fishing email. This is the URL to my GLIDE app. The next step is for our IT to check the URL again with Microsoft…… We live in hope that this may be resolved. At least it explains why some PIN Emails were getting And others not.
[UPDATE] Our corporate IT required a number of steps. First they confirmed that MS Outlook was wrongly tagging the inbound email as a Phishing risk. This was caused by my Apps URL. They put the app’s URL through the MS website risk checker and it came back safe. Cybersecurity then approved the sender email address. This solved the issue for most corporate users. However, some reported the issue of not receiving the email persisted. Back to Corporate IT. They were then able to confirm the emails were also tagged as suspicious Spam activity. Once this was fixed, all issues were resolved and users could receive the login pin emails. Finally, I underline this was for a Pro Glide application that had a login security restriction limited to users with our corporate email domain name, e.g. company.com (joe@company.com). The issue was not Glide failing to send email PINs.