New import
Choose a source. Mailbox imports autodetect the server, sweep messages, and stream the leads into a batch that classifies as they arrive.
Some shared hosts (e.g. Cafe24) serve a valid certificate under a different name. Enable only for servers you trust.
Extract lead addresses from
Classification
Messages per fetch
How many messages to pull per IMAP fetch. Higher = faster but heavier on the mail server; 20 is a safe default, max 100. POP3 fetches one at a time regardless.