Outlook Safelinks cant check the safety of website

Question

Hello,

When opening links from messages we get the attached error message stating "We can't check the safety of this website right now. Please try again later." We are getting this for different senders with no pattern. We then have to exit the email and wait some period of time before we can re-enter the email and at that time we are able to use the link. Is there any reason this would show this message at first and then we are able to proceed after waiting?

Answer 1

Try opening Certificate manager management console in your operating system and check the website certificate purposes that of which you are visiting.

Update root certificates.

You are desynchronizing from enforced Office 365 advanced threat protection policy at same time which is most likely just floating around there in admin center.

Answer 2

Hi @Noah Krueger ,

You could take a reference at the methods introduced in this link to Bypass Microsoft 365 (formerly Office 365) Advanced Threat Protection (ATP) / Defender for Office

Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.

1. By creating Mail flow rules set this X-MS-Exchange-Organization-SkipSafeLinksProcessing message header value to "1" for specific messages according to your requirement.
2. Or use the second method: Do not rewrite the following URLs" lists in Safe Links policies.

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