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216.73.216.180
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btgroupcloud-mail-onmicrosoft-com.mail.protection.outlook.com
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btgroupcloud-mail-onmicrosoft-com.mail.protection.outlook.com
SPF record
Queried
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DNS resolution error
Querying SPF record for btgroupcloud-mail-onmicrosoft-com.mail.protection.outlook.com failed.
check TXT records