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Whitelisting Workshop IPs in Microsoft 365 Defender

To ensure that all emails created and sent through Workshop pass through M365, your email security appliance, we need you to whitelist our IP addresses. Workshop uses SendGrid to deliver our emails, these IPs come directly from them.

  • Sign into Office 365 and go to the "Security Center" https://security.microsoft.com/
  • In the left side menu under “Email and collaboration” go to “Policies and rules
  • Click the “Threat policies” option
  • Under “Policies” click “Anti-spam”
  • Click “Connection filter policy (Default)” so the options appear on the right side and then click the “Edit connection filter policy” link
  • Add the IP addresses below to the “Always allow messages from the following IP addresses or address range” section
149.72.61.106
149.72.151.35
149.72.22.42
149.72.201.153
  • Check the “Turn on safe list” checkbox
  • Click “Save”

 

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