Is this a valid email Mozilla <firefox@email.mozilla.org>
I sent a message to myself by using protonmail as a reminder, and this is the first time I send a message to myself I use the protonmail service, but after one day I rec… (read more)
I sent a message to myself by using protonmail as a reminder, and this is the first time I send a message to myself I use the protonmail service, but after one day I received a message with the subject ((Stop emailing yourself links)) and the content of the message is (( The days of texting or emailing links to yourself are over. Easily send any of your very-important tabs to your synced devices, even between operating systems.)) from this email <firefox@email.mozilla.org> Is this a valid email from Mozilla and if so how did they know that I sent a message to myself ?!!!