Namespace Symfony\Component\Mime\Header

Classes
AbstractHeader An abstract base MIME Header.
DateHeader A Date MIME Header.
Headers A collection of headers.
IdentificationHeader An ID MIME Header for something like Message-ID or Content-ID (one or more addresses).
MailboxHeader A Mailbox MIME Header for something like Sender (one named address).
MailboxListHeader A Mailbox list MIME Header for something like From, To, Cc, and Bcc (one or more named addresses).
PathHeader A Path Header, such a Return-Path (one address).
UnstructuredHeader A Simple MIME Header.
Interfaces
HeaderInterface A MIME Header.