Fred Lindberg writes:
> Your solution has the disadvantage of requiring considerable
> intelligence at the MUA level,
For what? String comparisons on the List-ID? The format is unnecessarily
complicated but still manageable: remove spaces and tabs and newlines,
remove everything before the last <, squish to lowercase.
> a standardized format for confirmation messages,
If the MUA is trying to do something fancy like subscribe to a list on
the user's behalf, obviously it would appreciate knowing when it has to
reply to complete the subscription, and when the user is subscribed. In
general, as MUAs learn more and more about mailing lists, there will be
more and more demand for easy-to-parse header fields in these messages.
> It may have been read with a different MUA/computer.
That's a local problem, no more difficult to solve than moving personal
address books from one MUA to another. Of course, the problem solves
itself when a new confirmation message shows up.
---Dan
