On Thursday 08 April 2021 at 16:39:50, Santanu B wrote: As the headers of your own email (and every other one on this list) say: List-Unsubscribe: <https://lists.kamailio.org/cgi-bin/mailman/options/sr-users>, <mailto:sr-users-request@lists.kamailio.org?subject=unsubscribe> Have you tried this and run into a problem? Any decent mail client will give you this and other options if you simply right-click on a list message. Antony. -- I bought a book on memory techniques, but I've forgotten where I put it. Please reply to the list; please *don't* CC me.