A customer is mailing me.I saw some strange links in the mail.
He use getmailspring.com. This app seems to replace every link in a mail and add tracking.Tracking include Message-ID & hashed recipient.
Don't use mailspring!
OH It's not even hashed.It's base64…
😡 💩 🤦♂️
toots.benpro.fr is one server in the network