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Re: Intent to revive "expires" header from draft-ietf-mailext-new-fields-15
Keith Moore wrote:
> How about this: "The sender believes this message will be irrelevant
> after the indicated date/time."
> "This field is primarily intended for use between senders and recipients
> and their agents, rather than by message transport. It is suggested
> that the default behavior of an MUA with respect to the expires header
> field should be to display such a message in a distinguished way. For
> example, the message could be displayed with gray text rather than
> black, or in a different font than normal, or (in summaries) with an
> image of an hourglass with the sand at the bottom."
> "It is also suggested that MUAs allow setting of an expiration date as
> an option when composing messages"
> "MUAs, Message Stores, and MTAs, MUST NOT delete a message on the basis
> of an Expired header field unless given explicit instructions to do so
> by the recipient."
> "Mail Filters MUST NOT consider an expired header field as criteria to
> be considered for deleting the message unless given explicit
> instructions to do so by the recipient"
+1 (or rather +5)
> behavior for mail-to-NetNews gateways should also be specified.
Transparent, "Expires:" can be kept as is (modulo magic SP in news)