Anvil APP detected as malicious from Office 365 Defender

Anvil Q&A
1

I’m sending via email urls to my Anvil App: https://namirial-de-remote.anvil.app/

These emails are not delivered to Office365 users because:

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I think this is a false positive, VirusTotal URL check is all green: VirusTotal

However, I don’t know how to fix this situation and contact Office365 Defender team to fix the malicious detection.

Anvil team can you help?

Urgent.

BR

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2

I have this problem too.

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3

I’m afraid there isn’t much we can do when third parties mistakenly block emails from our domains. There’s a help article here that describes steps for reporting the false positives, but apart from that you may wish to switch to using a custom domain. Sorry we couldn’t be more helpful!

4

Hi @daviesian and thanks for replying.
It’s not the email coming from Anvil Apps domains that are blocked.

The emails (whatever the sender domain) containing that Anvil App url in the email body, are blocked.

I was just wondering if you have some preferred way of contacting MS on this topic, since it can potentially extend to many other users.

BR

5

Try this: Manage submissions - Microsoft Defender for Office 365 | Microsoft Learn

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