Inbox sorting assistant

Immune vs SaneBox

SaneBox organizes what already arrived. Immune decides whether unknown mail may arrive at all on the addresses you expose to the internet.

Capability	Immune	SaneBox
When it acts	Before delivery to the protected address	After delivery, by moving messages into folders
Spam and bots	Most never complete the challenge	May still land, then get filed away
Phishing risk window	Held until verification or review	Message can sit in a folder until someone opens it
Public gateway	Yes	No (assumes a mailbox feed)

Choose Immune when

The problem is volume and risk on published addresses, not folder clutter for one person.
You want unknown senders blocked or challenged, not sorted into SaneLater.
Protection must work for shared and virtual inboxes, not only a personal account.

SaneBox may still fit when

You love your current inbox and only want smarter triage of newsletters and CC noise.
Mail is already from known people and the pain is organization, not abuse.

Protect the inboxes filters leave open

Put a challenge gateway in front of support@, contact@, and the other addresses you publish.