How it works

Two AIs. One calm inbox.

EverGuard runs as an invisible helper next to Classic Outlook. Here’s exactly what happens every time a new email arrives — in six small steps.

Real-time Two-model Reversible Local-first
New email
Saved senders
GPT-4o mini
Sonnet check
Action
Audit log
Step 2

We check your saved senders first

Every time you drag an email between folders, EverGuard remembers. If we’ve seen this sender before, we apply your saved rule instantly — no AI call, no cost, no delay.

instant
Step 3

GPT-4o mini reads the message

If the sender is new, we pass a trimmed copy of the email (subject, sender, body) to GPT-4o mini with a carefully-tuned prompt. It returns one of five categories: genuine, promotional, safe junk, dangerous, or uncertain.

typically 2–3 seconds
Step 4

If it looks dangerous, Sonnet 4.6 double-checks

Before any email is moved out of your Inbox, Claude Sonnet 4.6 independently reviews it with the full message and more context. Both AIs must agree (or Sonnet is unsure) to act. If Sonnet disagrees, we leave it in your Inbox and log the save.

only when needed — adds ~3 seconds
Step 5

The right action happens automatically

Genuine stays put. Promotional stays in your Inbox (you often want real-brand marketing). Safe junk moves to an “EverGuard Spam” folder. Dangerous moves to a “Dangerous Email” folder and triggers a gentle desktop notification.

Step 6

You stay in control

Every decision is in the activity log. Drag an email back to the Inbox and EverGuard learns to never bother that sender again. Nothing is silently permanent — not even dangerous emails, which sit in quarantine for 30 days before they’re removed.

What actually leaves your PC?

We built EverGuard for our own customers — so we kept this deliberately small and reversible.

✓ Sent to the classifier

  • Subject and sender name / address
  • Recipient email (so the AI knows which inbox)
  • First 4000 + last 1200 characters of the body
  • List of link domains found in the body
  • Attachment filenames (no attachment contents)

Never leaves your PC

  • Attachment contents
  • Full email headers
  • Body beyond the trimmed window
  • Your sender-override rules — they stay in a local LiteDB file
  • The audit log — seven-day local history of every classification

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