- 打开 Terminal
- 输入
defaults read com.apple.mail UserHeaders
,回车 - 显示有
The domain/default pair of (com.apple.mail, UserHeaders) does not exist
- 输入
defaults write com.apple.mail UserHeaders '{"Reply-To" = "reply-to@address"; }'
- 禁用此功能
defaults delete com.apple.mail UserHeaders
注意:此设置会忽略 GUI 中的 Reply-To 设置