In article
<5b56a4ba(_dot_)1c69fb81(_dot_)836c0(_dot_)d955(_at_)mx(_dot_)google(_dot_)com>
you write:
Plan B: figure out how to make your URLs short enough that your
List-Unsubscribe
headers are under 998 characters. ...
Plan B is only feasible if the same person provides the URL _and_ writes the
code to generate the
List-Unsubscribe header field (or any other list header field) for the
corresponding message; not so if a
software library generates a message containing the value of a
List-Unsubscribe (or other) header field
provided by a (third-party) user that, while otherwise syntactically valid,
could exceed 998 characters in
length. ....
You lost me here. Is there some force that requires you to pass giant
URLs to List-Unsubscribe? If you want to interoperate, use reasonably
short URLs. This should not be rocket science.
R's,
John
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