https://bugs.kde.org/show_bug.cgi?id=500998
--- Comment #4 from Jonathan Loriaux ---
Hi Laurent,
As you are french, you can subscribe to any France Television newsletter and
see the Expires: header.
To subscribe : https://www.francetelevisions.fr/abonnements
I can also provide you a test to
https://bugs.kde.org/show_bug.cgi?id=500998
Bug ID: 500998
Summary: [Feature request] Manage Email Expiration Dates in
Kmail
Classification: Applications
Product: kmail2
Version: unspecified
Platform: Other
https://bugs.kde.org/show_bug.cgi?id=500998
--- Comment #6 from Jonathan Loriaux ---
I just sent you a test email from Brevo.
For the moment, no one implemented. It's planned in Betterbird for April and a
plugin is currently developped for RoundCube. In France, LaPoste.net and
Orange.f