# get_address_header ```lua message:get_address_header(NAME) ``` Gets the first header whose name matches `NAME`, parses it as a list of mailboxes and groups, and returns an [addressheader](../addressheader/index.md) object. Returns `nil` if no matching header could be found. See also [message:from_header](from_header.md) and [message:to_header](to_header.md).