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What does intermediate custodian mean here? Something like sendgrid? Is there an issue for normal peoples email on custom domains (eg fastmail or gmail hosted)?
by azinman2 5y ago
What does intermediate custodian mean here? Something like sendgrid? Is there an issue for normal peoples email on custom domains (eg fastmail or gmail hosted)?
- toomim 5y agoI think he is talking about mailing list servers. When you email mailman, it'll add a line to the bottom of the email, manipulate some to: and cc: headers, and forward it along. This changes the hash of the email which breaks some crypto signatures.