Email Header Parser

Unfold folded lines and display key-value pairs.

NameValue
Fromsender@example.com
Toyou@example.com
Subject=?UTF-8?B?5rWL6K+V?= test
DateMon, 1 Jan 2024 12:00:00 +0000
Message-ID<abc@mail.example.com>
Receivedfrom mx1.example.com by inbox; Mon, 1 Jan 2024 12:01:00 +0000