Non Standard Headers Key:
Header Name | System that added it |
X-pstn* | Postini |
X-SmarterMail* | SmarterMail |
X-NAS* | Norton Anti-Spam |
X-MSMail* | Microsoft Outlook |
X-Barracuda* | Barracuda Filtering Server |
X-TM-AS* | ScanMail™ Suite for Microsoft™ Exchange |
X-AOL* | America On Line (AOL) |
X-Antivirus* | Avast! |
X-MD* | MDaemon® Email Server |
X-AntiAbuse* | Exim and sometimes PHP mail scripts |
X-YMail* | Yahoo Mail |
x-job* | ExactTarget Email Marketing |
X-PCTools* | PC Tools Mime Parser |
X-Mail-Filter-Gateway* | MailScanner |
X-IMSS* | Trend Micro InterScan Messaging Security Suite |
X-Facebook* | |
X-IronPort* | Cisco IronPort Email Security Services |
X-dmid* | dotMailer® |
This is just a point of reference, as I hate to Google them. If you add ones to add, let me know. I am purposefully excluding mailer, priority, and mimeole.
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