Superhuman isn't an email marketing platform. From the article:
> Superhuman’s competitors are Apple Mail, Gmail, and Outlook. Exactly zero of those companies insert a tracking pixel into their emails. Furthermore, both Outlook and iMessage use Read Receipts that are turned off by default and controlled completely by the receiving user. In other words, when you buy a new iPhone or start using Outlook, no one requesting an Outlook or iMessage read receipt can receive one without your explicit permission. Furthermore, even if you do turn those on, it’s a simple one-time receipt… not a log of times and geolocations every time the recipient views the message.
> Superhuman’s competitors are Apple Mail, Gmail, and Outlook. Exactly zero of those companies insert a tracking pixel into their emails. Furthermore, both Outlook and iMessage use Read Receipts that are turned off by default and controlled completely by the receiving user. In other words, when you buy a new iPhone or start using Outlook, no one requesting an Outlook or iMessage read receipt can receive one without your explicit permission. Furthermore, even if you do turn those on, it’s a simple one-time receipt… not a log of times and geolocations every time the recipient views the message.