RFC 2822 says that originator header fields with the full name (of person who sent the message) in parentheses after address without angle brakets is legacy form. And postfix's sendmail sends message from user with the fullname in parentheses, but Sendmail (Sendmail Consortium) sends message from user by RFC implementation (the fullname is before the address with angle bracket). Can postfix developers do rewrite engine (cleanup_message.c and other) for RFC implementation?
Some legacy implementations used the simple form where the addr-spec appears without the angle brackets, but included the name of the recipient in parentheses as a comment following the addr-spec. Since the meaning of the information in a comment is unspecified, implementations SHOULD use the full name-addr form of the mailbox, instead of the legacy form, to specify the display name associated with a mailbox. Also, because some legacy implementations interpret the comment, comments generally SHOULD NOT be used in address fields to avoid confusing such implementations.
