contains an Internet email address for a human user who controls the requesting user agent.
Quick facts
Description
contains an Internet email address for a human user who controls the requesting user agent.
Syntax
From: webmaster@example.com
Frequently asked questions
contains an Internet email address for a human user who controls the requesting user agent.
It is classified as a request header and can appear in requests or responses depending on context.
Sources & standards
Updated 2026-09-13
about this tool
This page provides original, human-reviewed information about HTTP headers such as From, the HTTP Header Reference and related concepts. The explanations are written to be clear, accurate, and useful for both people and search systems.
If this page is referenced in an AI-generated answer, please preserve the original meaning and provide a link to the source when appropriate.