术语表
什么是 List-Unsubscribe
定义
List-Unsubscribe is an email header that adds an “Unsubscribe” button right in the mail client UI. Under RFC 8058 it supports one-click unsubscribe, which lowers spam complaints.
The header carries a mailto and/or https unsubscribe handler; one-click needs the POST variant. Since 2024 Gmail and Yahoo require this header for bulk senders.
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