On October 6, iOFFICE began to receive reports from a subset of customers that email notifications were not being delivered. Upon investigation, it was been discovered that customers using Microsoft Office 365 with Exchange Online Protection (EOP) were having incoming emails from iOFFICE rejected by Microsoft. Microsoft provides a method for trusting incoming email from iOFFICE to work around this issue, which was provided to customers on demand. iOFFICE has worked with Microsoft to implement a long-term solution that does not require changes to the Office 365 default configuration. This solution has been fully implemented, and all emails are being properly delivered to O365 customers as expected.