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Mark GalvinFlag for United Kingdom of Great Britain and Northern Ireland

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Office 365 - Exchange Online Advanced Threat Protection

Hi experts

client using Office 365 E3 and recently added Exchange Online Advanced Threat Protection (EOATP) to each user.

Configured the Safe Attachments rule:
Settings:
User generated imageApplied to:
User generated image
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:
User generated image
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?

Thanks
Mark
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Vasil Michev (MVP)
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I think for now I will keep the time-outs coming to IT support who can then forward the emails onto the right user. We had the time out turn off before and it caused more issues.

Marking your comment as answer.