Postini email header

Postini is a cloud-based email security service that scans emails for spam, viruses, and other malware. When an email is scanned by Postini, it adds a specific header to the email that indicates whether the email was scanned and what the results were. Here are some common Postini email headers:

1. X-Postini-Spam: This header is added to emails that are identified as spam. It contains a score indicating the likelihood that the email is spam.
2. X-Postini-Virus: This header is added to emails that contain a virus or other malware. It contains information about the type of malware detected.
3. X-Postini-Scan: This header is added to emails that have been scanned by Postini. It contains information about the scan results, such as whether the email was clean or contained malware.
4. X-Postini-Reason: This header is added to emails that have been blocked or quarantined by Postini. It contains a reason code indicating why the email was blocked or quarantined.
5. X-Postini-Quarantine: This header is added to emails that have been quarantined by Postini. It contains information about the email, such as the sender and subject, and allows the recipient to release the email from quarantine.

Here is an example of a Postini email header:

X-Postini-Spam: 5
X-Postini-Virus: Clean
X-Postini-Scan: 20230215-123456
X-Postini-Reason: 0
X-Postini-Quarantine: 0

In this example, the email has been scanned by Postini and has been identified as not containing any malware or spam. The X-Postini-Spam header indicates a spam score of 5, which is a moderate level of spamminess. The X-Postini-Virus header indicates that the email has been scanned and found to be clean. The X-Postini-Scan header indicates the date and time of the scan. The X-Postini-Reason and X-Postini-Quarantine headers indicate that the email has not been blocked or quarantined.