[Mailman-Developers] Reply-To: handling

[Jay R. Ashworth]

On Fri, Oct 19, 2001 at 12:34:05PM -0700, J C Lawrence wrote:
> I've been reading RFC 2822 on the subject of Reply-To and noticed
> that the content of Reply-To is a list.  ie you can have more than
> one address listed under a Reply-To:
> 
>   reply-to = "Reply-To:" address-list CRLF
>   address-list = (address *("," address)) / obs-addr-list
>   address = mailbox / group
>   mailbox = name-addr / addr-spec
>   name-addr = [display-name] angle-addr
>   angle-addr = [CFWS] "<" addr-spec ">" [CFWS] / obs-angle-addr
>   group = display-name ":" [mailbox-list / CFWS] ";" [CFWS]
>   display-name = phrase
>   mailbox-list = (mailbox *("," mailbox)) / obs-mbox-list
> 
> eg:
> 
>   Reply-To: list@foo.conm, list@bar.com, claw@kanga.nu
> 
> This would seem to potentially remove one of the complaints on
> Reply-To: lists -- that they nix/kill crossposting, and lose the
> actual semantic value of the original Reply-To header.  
> 
> Ergo, if a given list is configured to do reply-To munging and it
> receives a message with Reply-To set, then it makes sense to _ADD_
> the list's address to the Reply-To: header if present, rather than
> replacing it.

Assuming that mailers correctly handle such a Reply-to.

And note that this message arrived here with no To: header, FWIW.

Cheers,
-- jra
-- 
Jay R. Ashworth                                                jra@baylink.com
Member of the Technical Staff     Baylink                             RFC 2100
The Suncoast Freenet         The Things I Think
Tampa Bay, Florida        http://baylink.pitas.com             +1 727 804 5015

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