From

The From request header contains an Internet email address for a human user who controls the requesting user agent.

If you are running a robotic user agent (e.g. a crawler), the From header should be sent, so you can be contacted if problems occur on servers, such as if the robot is sending excessive, unwanted, or invalid requests.

Warning: You shouldn't use the From header for access control or authentication.

Header type Request header
Forbidden header name no

Syntax

From: <email>

Directives

<email>

A machine-usable email address.

Examples

From: webmaster@example.org

Specifications

Specification
Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content (HTTP/1.1)
# header.from

Browser compatibility

BCD tables only load in the browser

See also