Re: Reply-To -> CC?

[Emanuel Berg]

Pankaj Jangid wrote:

> This is possible with ‘Posting Styles’. Something like this,
>
>              (message-to-A-p        ;; A function predicate 
>               (CC "B <b@cc.org>"))

Perhaps, or something like this is the/a message send hook:

(when (string= (message-field-value "To") "Joe Hacker <joe@hacker.com>")
  (message-goto-cc)
  (insert "Jane Hacker <jane@hacker.com>") )

or just use the ~/.mailrc file and define an alias for them both

alias jane "Jane Hacker <jane@hacker.com>"
alias joe  "Joe Hacker <joe@hacker.com>"
alias hackers jane joe

but I got the impression the OP wanted a header setting to
instruct another program what to do, and to do that, if
possible, one perhaps rather should digest some RFCs and see
what standards are proposed (and implemented/reinforced) ...

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