Email links flagged as malicious content

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  • Problem
  • Updated 3 years ago
  • Not a Problem
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I run an email account for a public agency. This was not happening a few hours ago or previously, but now when I send out emails with hyperlinks the link is being flagged as malicious. 

This is the link:
it should not be flagged. 

Browser type: chrome, safari, internet explorer.

It is not malicious and directs to an agency website. I need this resolved asap.
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Lucia Phan

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Posted 3 years ago

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Sam Collis, Customer Support Specialist

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Hi Lucia,

Thanks for the screenshot there, I can confirm there is nothing wrong with the link itself within the mailing.

Office 365 has an option for additional security for links and attachments within mailings called "Advanced threat protection" or ATP to flag any link that it believes to be potentially malicious.  As the user of Office 365 you are able to control the degree of scrutiny a link receives within a mailing.

A few potential reasons the link may be flagged as malicious:
  • It sits behind a redirect through our servers.  This is how a link is tracked.  That being said, ATP does account for redirects as this is a common occurrence in the commercial email world and won't flag trusted redirects.  
  • It may simply not trust the destination URL.
  • It may be because it is an encrypted URL (starting with https://)
  • If you're using Google Analytics it's probably due to the appendages added to the URL  
Users of other mail client's will not be told that the link is malicious and for folks that receive your mailing using Office 365 it will depend on the settings they have in place. 

If you're after a little more information on how ATP works, I found this article to be fairly helpful.

Hope that helps!