A classifier that cannot be taught will keep surfacing LinkedIn. InboxSift stores per-sender handling locally so Briefing matches how you already treat people.
The four handling modes
Always Act: this person or system is a task source. Always Know: never Noise; Act only for a real ask. Always Noise: stay out of Briefing unless you change it. Let InboxSift decide: model plus guardrails.
Relationships are a weak prior
Marking someone Important should not hide a newsletter they somehow forwarded, and marking a vendor Automated should not hide an invoice due tomorrow. Handling is stronger than a soft relationship label.
Stored on your device
Contact preferences live in Chrome extension storage, keyed by account. They are not a public social graph.
Frequently asked questions
- Is Always Noise the same as a Gmail block?
- No. Mail still arrives in Gmail. InboxSift just keeps it out of Briefing.
Sources & further reading
Published 2026-09-04. See also our full article library.