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fvanloon
Copper Contributor
Joined Apr 13, 2021
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Re: Exchange Online Protection SPF record
I see the same thing happing with emails send from an application and using Office365 as SMTP. The address: 2603:10a6:102:1ce:6 is not in the record spf.protection.outlook.com Looks like MS is not updating the record, or there are servers which a sending emails which should not be going on the internet that route. Which IPv6 range should be added, any one an idea? Not planning on manually adding each IP address.30KViews0likes4Comments
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