Dear Taichi,

I realized that the vsnet email archives have been moved to a different page a couple of months ago.
As part of our VSX work, we take the information disseminated through vsnet-alert and vsnet-chat to update the catalogue information, properly referencing each message with its URL.
The new URL format is really unfriendly to do that, but until some days ago I noticed that the old archives up to August 2021 were still online, but now they aren't anymore.
This means that thousands of VSX references now point nowhere and that lots of vsnet-chat reclassifications and useful information will be dificult to incorporate to our database.
I have most of that info saved as email notifications but we won't be able to link them anywhere.

Were these old messages lost forever? Are they saved somewhere or is there a plan to make them available?

Best wishes,
Sebastian

-- 
Sebastian Otero
VSX Team
American Association of Variable Star Observers

“The mission of the AAVSO is to enable anyone, anywhere,
to participate in scientific discovery through variable star astronomy”

www.aavso.org