sogaiu/notes.md

Last active February 18, 2026 08:46

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fastmail notes

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How to View Full Email Source and Header in Fastmail
Why can't I see the masked address to which this email was sent - reddit
The evolution of the advanced fee scam - Fastmail Custom Support
Sender authentication - Fastmail > Mail > Technical
Plus addressing and subdomain addressing - Fastmail > Mail > Technical
Message Header Field for Indicating Message Authentication Status - RFC 7001
SPF, DKIM & DMARC: email anti-spoofing technology history and future - Rob Mueller

viewing fastmail email as plain text - hackernews response
view messages as text by default - EmailDiscssions.com > Email Service Provider-specific Forms > FastMail Forum

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