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What is x forefront Antispam report?

What is x forefront Antispam report?

X-Forefront-Antispam-Report: Contains information about the message and about how it was processed. X-Microsoft-Antispam: Contains additional information about bulk mail and phishing. Authentication-results: Contains information about SPF, DKIM, and DMARC (email authentication) results.

What is Microsoft antispam?

Spam filtering (content filtering): EOP uses the spam filtering verdicts Spam, High confidence spam, Bulk email, Phishing email and High confidence phishing email to classify messages. For more information, see Configure anti-spam policies in Microsoft 365.

How is SCL rating calculated?

The values for SCL that is set by EOP range from -1 (not spam) up to a value of 9 (high confident spam). When a message is inspected by EOP, the anti-spam engine will analyze the message, and will determine the SCL score for the message. According to each SCL value, there is a default action that is taken.

Why is SCL 5?

That score is mapped to an individual spam confidence level (SCL) that’s added to the message in an X-header….In this article.

SCL Definition Default action
5, 6 Spam filtering marked the message as Spam Deliver the message to the recipients’ Junk Email folder.

How to read x-forefront-antispam-report?

Thanks for any ideas. It contains not all fields but this information: “Other fields in this header are used exclusively by the Microsoft anti-spam team for diagnostic purposes.” an IP address earns a negative reputation when suspicious activity, such as spam or viruses originating from that address are detected.

When does X-forefront-antispam-report-untrusted go back into EOP?

When a message arrives in Exchange Online Protection (EOP) with an existing X-Forefront-Antispam-Report header, it is renamed to X-Forefront-Antispam-Report-Untrusted. If the message is then detected as spam and stored in the optional quarantine, upon release it will go back into EOP.

What are the headers in Microsoft Office for anti spam?

When Exchange Online Protection (EOP) scans an inbound email message it inserts the X-Forefront-Antispam-Report header into each message. The fields in this header can help provide administrators with information about the message and about how it was processed.

What does the antispam report stamp do in Exchange Server?

The antispam report stamp Antispam stamps in Exchange Server apply diagnostic metadata, or stamps, such as sender-specific information, puzzle validation results, and content filtering results, to messages as they pass through the antispam features that filter inbound messages from the Internet.