When the mail is not yours to share.
Some inboxes carry other people's secrets. If yours does, a spam filter that uploads your mail to a vendor is a decision you have to justify, not a default you can accept.
- For companies
- Estimate the time your team loses to unwanted messages. Treat fraud risk separately.
- Lawyers
- Client correspondence filtered on your own machine, with no provider to select, bind or assess.
- Banks and finance
- A Postfix milter in your own SMTP path, so no ICT third party processes customer mail.
- Doctors and clinics
- Patient correspondence filtered on your own Mac, with no provider to bind to secrecy.
- Accountants
- Statements, valuations and client plans, classified on your Mac without a filtering server.
- Journalists
- A source's message filtered on your own machine, with no vendor holding the copy that names them.
- Researchers
- Participant correspondence filtered on your own machine, with no operator to add to the record.
- Public bodies
- Mail filtered on the machine, with no supplier to add to the chain.
- GDPR compliance
- No processor, no transfer, and no message text sent to an AI provider: the filter runs on the machine the mail is already on.
Every filter reads your mail. Only the location differs.
A filter cannot judge a message it has not read. That is true of every product in the category, ours included. So the question is never whether your mail gets read. It is where, and by whom, and what they keep.
Most filters answer: on our servers. For a professional under a duty of confidentiality, that answer is the whole problem, because it means a second company holds the correspondence you were trusted with. Klar answers: on your Mac. The part of the app that reads your inbox has no network access, so classification creates no vendor copy and no retention policy to read.
How local-first worksReclaim your inbox
Spam filter for Apple Mail. Free on the App Store.
