Gets the header's raw name. The raw header name is the complete string up to
(but not including) the ':' separating the header's name from its value. This
string may be different from the value returned by gmime.header.Header.getName
if the parsed message's header contained trailing whitespace after the header
name, such as: "Subject : this is the subject\r\n".
Gets the header's raw name. The raw header name is the complete string up to (but not including) the ':' separating the header's name from its value. This string may be different from the value returned by gmime.header.Header.getName if the parsed message's header contained trailing whitespace after the header name, such as: "Subject : this is the subject\r\n".