Authentication and delivery path
Email Header Analyzer
Paste the raw headers from any received email to see the SPF, DKIM and DMARC results, domain alignment, every Received: hop and any spam-filter signals. It runs entirely in your browser; nothing is uploaded.
In most mail clients, open the message and choose "Show original" or "View source". Copy everything up to the blank line that separates the headers from the body.
Ready for a header dump
The summary verdict, alignment checks, delivery path and parsed header list appear here after you run the analyzer.
Parsing headers...