I currently have the following in our SPF record that encompasses our base domain and a third party that works with us. (changed some info in this string for security)
v=spf1 a mx include:_spf.thirdparty.com ip4:xxx.xx.xxx.x/21 ?all
Now another third party needs us to add their info to the SPF record as well, but I am not sure how to do this. Here is the string they suggested.
v=spf1 mx mx:2ndthirdparty-com.mail.protection.outlook.com ip4:xx.xx.x.xxx include:spf.protection.outlook.com -all
Any suggestions on what the final SPF record string should be?
I suggest using https://vamsoft.com/support/tools/spf-syntax-validator to validate the SPF record
So if you are using Office 365 include:spf.protection.outlook.com is the correct piece to add
Once your issue is resolved,
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