client using Office 365 E3 and recently added Exchange Online Advanced Threat Protection (EOATP) to each user.
Configured the Safe Attachments rule:
Now, client has all of their MFP Scanners emailing through an internal SMTP Relay server (as per supported method for Office 365).
However, IT Support keep getting these:
The system is, sometimes, timing out the malware scan on, what is just an internal email.
Rather annoyingly, on the Safe Attachments rule there is not exception option that states 'Ignore if sender is internal' as you find on other Office 365 Mail Flow Rules.
Any one come across this before?