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You are conflating the SMTP envelope and the mail headers. The SMTP envelope is necessary for delivery, the mail headers are not (the addressee information is d
by rowyourboat 9y ago
You are conflating the SMTP envelope and the mail headers. The SMTP envelope is necessary for delivery, the mail headers are not (the addressee information is duplicated)
- KGIII 9y agoThanks for the correction. I had originally typed 'meta data' but thought headers were the same thing. Thanks!