MailHeaderAnalyzer
0.1.1
Analyzes email headers offline: delivery chain with delays and TLS, SPF/DKIM/DMARC/ARC results and whether they really come from the receiving server, DMARC alignment, Exchange Online hybrid classification (AuthAs, AuthMechanism, CrossTenant), Microsoft Defender/EOP verdicts (SCL, BCL, CAT), SpamAssassin, Rspamd and anomalies such as duplicate From lines or Unicode di
Analyzes email headers offline: delivery chain with delays and TLS, SPF/DKIM/DMARC/ARC results and whether they really come from the receiving server, DMARC alignment, Exchange Online hybrid classification (AuthAs, AuthMechanism, CrossTenant), Microsoft Defender/EOP verdicts (SCL, BCL, CAT), SpamAssassin, Rspamd and anomalies such as duplicate From lines or Unicode direction controls. No DNS lookups, no network requests.
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Minimum PowerShell version
5.1
Installation Options
Owners
Copyright
(c) 2026 Rafael Pfister. MIT License.
Package Details
Author(s)
- Rafael Pfister
Tags
Email Mail Header Exchange ExchangeOnline Microsoft365 Office365 SMTP SPF DKIM DMARC ARC Phishing Security Forensics Troubleshooting Windows Linux MacOS
Functions
Get-MailHeaderAnalysis ConvertTo-MailHeaderReport
PSEditions
Dependencies
This module has no dependencies.
Release Notes
https://github.com/pfstr/MailHeaderAnalyzer/blob/main/CHANGELOG.md
FileList
- MailHeaderAnalyzer.nuspec
- MailHeaderAnalyzer.Format.ps1xml
- MailHeaderAnalyzer.psd1
- MailHeaderAnalyzer.psm1
- Private\ConvertFrom-AuthenticationResults.ps1
- Private\ConvertFrom-EncodedWord.ps1
- Private\ConvertFrom-MailDate.ps1
- Private\ConvertFrom-ReceivedHeader.ps1
- Private\ConvertFrom-SpamHeader.ps1
- Private\Get-ExchangeClassification.ps1
- Private\Get-MailDomain.ps1
- Private\Get-MailProvider.ps1
- Private\Invoke-HeaderAnalysis.ps1
- Private\Split-MailHeader.ps1
- Public\ConvertTo-MailHeaderReport.ps1
- Public\Get-MailHeaderAnalysis.ps1
Version History
| Version | Downloads | Last updated |
|---|---|---|
| 0.1.1 (current version) | 12 | 9/24/2026 |
| 0.1.0 | 11 | 9/24/2026 |