[Pharo-dev] Unsubscribe from pharo-dev user doesn't exist

Hi All. Sorry for the message totally unrelated to the topic, but it's been for a long time that I've been trying to unsubscribe from the list in this page: https://lists.pharo.org/empathy/list/pharo-dev.lists.pharo.org But it happens that my email account doesn't exist there, but still I'm receiving the emails. I guess my email got there via a migration from a previous list years ago. Please, could you tell me how might I unregister from the list? Thanks. Juan Miguel