We are experiencing the same issue and our security expert has formed the view that all emails from accountright@apps.myob.com are being marked by Microsoft as High Confidence Phish and being placed in Quarantine. In essence, every company that has high levels of cybersecurity in place will have emails from this address blocked.
It seems this is due to a link that MYOB adds to every email that goes out from AccountRight:
Hi again, our IT people have been able to create a workaround and invoices are now being emailed from AccountRight like they were previously. This is an excerpt from their support email to us:
There has been no changes for the email security recently that means the way the emails were being authorized by MYOB has changed due to an update, we will reach out to their support and see if we can get the emails to be authorised through your Microsoft tenant, if we can then it would bypass any current issues due to the update.
We have now actioned a workaround to ensure the emails will get through the email security. We are following up with MYOB support to get a long term fix in place and we will update you once this has been completed.
I hope this information is of benefit to some of you.
