A secure email gateway is the right first line of defense — but no gateway stops every phish. A share of attacks reaches your people anyway, and that's not a flaw in any one product: it's how delivery-time scanning works. SafeToOpen is the client-side layer that catches what gets through, at the moment someone is about to click.
Why phishing still reaches your users
Even with a gateway in front of your mail, four kinds of attack routinely slip past:
- Zero-day pages no filter has seen yet — brand-new lookalikes that aren't on any list at delivery time.
- Time-of-click weaponisation — a link that's clean when the gateway scans it, then turns malicious after delivery.
- QR codes and links outside email — quishing, plus phishing that arrives by SMS, chat, ads or search, which an email gateway never sees.
- Tailored BEC and impersonation — low-volume, text-only messages with no malicious payload to catch at the gateway.
Where SafeToOpen fits
SafeToOpen runs on the client — a browser extension and an Outlook/Gmail add-in — and judges the actual page or message at the point of click, after the gateway has done its job. It's the last line of defense: the layer that catches the residual the gateway couldn't, wherever the link came from. It doesn't touch your mail flow and doesn't replace anything.
Defense in depth, not replacement
Keep your gateway. SafeToOpen adds point-of-click protection on the endpoint — catching the zero-day page the moment a person is about to trust it.
How it works →Works alongside your gateway
Secure email gateways and integrated cloud email security platforms filter the bulk of known and high-volume threats at delivery. SafeToOpen complements any of them by adding client-side, point-of-click detection — so when something does get through, it's caught before the click does damage. Why phishing bypasses gateways →
What SafeToOpen adds that a gateway can't
- A re-check at click time, catching links that weaponise after delivery.
- Coverage beyond email — the browser, where links from SMS, chat, ads and search are opened.
- Zero-day page analysis, judging a site by what it is rather than whether it's on a list.
- Privacy-first, minutes to deploy — no mail-flow changes, no browsing data collected.
FAQ
Does SafeToOpen replace my secure email gateway?
No. SafeToOpen is a client-side layer that runs alongside your gateway. Your gateway keeps filtering mail at delivery; SafeToOpen catches the phishing that gets through, at the point of click — including links that arrive outside email.
We already have a secure email gateway — why would we need SafeToOpen?
Because no gateway stops every phish. Zero-day pages, links that weaponise after delivery, QR codes, and links that arrive by SMS, chat or ads all reach users anyway. SafeToOpen catches those on the endpoint, where and when the click happens.
Will it conflict with our email gateway?
No. SafeToOpen doesn't change mail flow or sit inline. It's a browser extension and an email add-in that work independently of, and alongside, your existing gateway.
How does it catch what the gateway missed?
It analyses the actual page or message at the moment of click rather than only at delivery, so it catches brand-new pages and links that turned malicious after they were delivered.