FlareMail Shield is the name for FlareMail’s privacy engine plus inbound mail-risk evidence. It is built into the reader, not a separate security product.
What you see
Open a message to see a compact status: Protected, Caution, or High risk. Expand it for authentication, sender, links, privacy, and AI-safety notes. The copy is evidence (“Reply-To uses a different domain than From.”), not a verdict that the message is phishing.
Automatic spam
Account owners can turn on Automatically move high-confidence spam in Settings → Privacy & Shield. Only high-confidence mail is moved. Weak signals — capitalization, a single tracking link, UTM parameters, newsletters — never auto-spam on their own. Explicit filter rules still win.
Show original and Analyze delivery
From the reader’s secondary menu you can show the stored MIME source, copy headers, download a .eml, or analyze delivery. Analysis reads Authentication-Results, SPF, DKIM, ARC, DMARC, and related headers from the stored message. If no trustworthy authentication result is present, FlareMail says so.