← Insights

Privacy-preserving Preferences

A more useful inbox should not cost you your private conversations.

A more useful inbox should not cost you your private conversations.

When we set out to make inbound email recommendations without reading your private conversations, the answer started with a simple rule: don’t read them.

Salt Mail separates direct correspondence from machine-generated email and handles each accordingly. We learn which updates you value without reading direct message content.

Marketing dressed up as a personal message does not get a free pass. You can reject it.

upload in progress, 0

Direct contact: dismissing blocks the sender.

upload in progress, 0

Machine-generated mail: keeping or dismissing teaches your preferences.

Whatever floats your boat.

A message can be useful and still have no place in your day. Another can be useful to you even if someone else would throw it away.

You want your sign-in codes. You might want the newsletter but have no use for the promotion that follows it. Those are ordinary expectations. Any solution designed to get your inbox under control should protect your privacy and meet those expectations.

A spam verdict cannot tell you whether you want a gardening newsletter. Neither can the fact that everyone else seems to love it.

You might follow a company’s product updates and ignore its sales. Your colleague might want the sales and have no interest in the product news. Neither of you is wrong.

Salt Mail learns from your choices. We do not use the population’s likes and dislikes to decide yours. Personal preferences should reflect the person receiving the message.

Change your mind. We keep up.

In many cases, your feedback influences recommendations within an hour. You can change your mind without starting over. What you did last matters.

You should not need to understand machine learning to teach Salt Mail what you want. Keep a useful message. Swipe an unwanted one away.

Those university updates might have mattered while your kid was applying for college. Once they decide where to go to school, the next hundred recruitment emails probably don’t matter. But you shouldn't have to unsubscribe from all of them. Swipe in the opposite direction next time and Salt Mail will know what you mean.

What matters is not just which sender you swiped. It is which message, what you did with it, and when. Wanting a delivery confirmation does not mean wanting every promotion from the same shop.

No system gets everything right, every time. If a message lands in the wrong place, move it back. That should be enough—no settings to hunt down, no explanation required.

A reversal is more than another swipe. It tells Salt Mail to reconsider an earlier recommendation, and your latest choice takes priority. Your correction helps shape how we handle the next relevant message.

Collecting feedback is the easy part. Closing the loop means carrying the correction into future recommendations. Recording your choices while repeating the same mistakes leaves you doing the work.

Your conversations remain yours. Your preferences should, too.

Read our privacy policy.