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Domain name
mail-prodca-sigmarh-net04c.mail.protection.outlook.com.
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SPF
mail-prodca-sigmarh-net04c.mail.protection.outlook.com.
SPF record
Queried
just now
DNS resolution error
Querying SPF record for mail-prodca-sigmarh-net04c.mail.protection.outlook.com. failed.
check TXT records
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