Guard works alongside Microsoft 365 to stop CEO impersonation, invoice fraud and the advanced phishing — lookalike domains, QR-codes, callback scams — that slips past the baseline. Live in minutes, nothing rerouted, nothing to rip out.
✓ Free trial, no card ✓ No demo call — your own inbox is the demo ✓ EU-hosted & GDPR-ready ✓ From €2.50 per protected mailbox
Today's fraud doesn't look like spam — it uses lookalike domains, QR codes and fake phone numbers to slip past Microsoft's baseline. From the moment you switch it on, Guard watches every incoming email and flags these techniques in real time, in your own mailboxes.
40+ detection models covering spoofing & authentication, impersonation, CEO & invoice fraud, lookalike domains, thread hijacking, malicious links & attachments, quishing and callback scams — improving for everyone automatically. Switch it on to see what's in your own mail. Start free →
The big platforms sell through gated demo calls and annual contracts. Guard is self-serve: switch it on in minutes, see real threats in your own mail, pay only for the mailboxes you protect — hosted in the EU.
| Microsoft 365 baseline | Legacy gateways (rerouting vendors) |
Premium AI (US-hosted) |
Olyteck Guard | |
|---|---|---|---|---|
| Catches what Microsoft misses | It is the baseline | Yes | Yes | Yes - a layer on top, not a replacement |
| Seeing it work | Built in | Sales cycle + PoC project | Gated demo call | Self-serve trial - real threats in your own mail |
| Getting started | Built in | Reroute your mail (DNS change) | Connect by API | One approval, nothing rerouted, minutes |
| Warns & teaches your staff | Limited | Basic tag | Some | Plain-language banner + a "why was this flagged" page |
| One employee can protect everyone | No | No | Rare | Yes - policy-based, company-wide takedown |
| Where your data lives | Region-dependent | Often US / global | Typically US | EU-hosted, GDPR-ready |
| Pricing | Per user | Every seat, quote-only | Quote-only, large minimums | Public pricing - only the mailboxes you choose |
| Minimum commitment | License tier | Annual contract | Annual contract | None - cancel anytime, prorated |
Category comparison based on publicly documented vendor models. Guard positions as a layer on Microsoft, not a rip-and-replace.
Sign in with Microsoft and an administrator approves once. Guard only reads mail to spot threats - it never reroutes your email or changes a setting. Switch it off anytime.
~2 minutesGuard finds your people and highlights VIPs and IT for you. You pick exactly who to cover, and pay only for those. Shared, disabled and guest mailboxes are free.
1 clickGuard starts watching incoming mail right away. New threats are flagged as they arrive - a clear warning banner for staff, or moved to junk - all reversible.
Live in minutesWe protect your mail without owning your data or rerouting your email - and every promise here is built into the product, not just the policy.
No quote-only games. You pay only for the people you choose to protect. Annual saves two months.
Banners, link protection, and fraud, phishing & impersonation detection.
+ Custom rules & model tuning, client reporting (PDF/CSV/XLSX), 1-year retention & priority support.
No - it works alongside it. Guard catches impersonation, invoice fraud and phishing that the Microsoft baseline misses, and complements your existing setup. No mail rerouting, nothing to rip out.
The moment an administrator approves access. Guard begins watching incoming mail straight away and flags new threats as they arrive, usually within minutes. It protects mail going forward, so there's nothing to dig out of old archives.
A one-time approval by an administrator lets Guard read incoming mail to detect threats, and add a warning banner or move a dangerous message to junk - all reversible. It never reroutes your email, sends mail, or changes other settings, and you can switch it off at any time from Microsoft.
Correct. Sign in with Microsoft, approve access, and you're protected. The free trial gives you full protection so you can see real threats in your own mail. Nothing converts to a paid plan automatically - when the trial ends, your past findings stay readable and you simply pick a plan to keep protecting new mail.
Every risky message carries a plain-language warning banner explaining why it was flagged, with a "why was this flagged" page - so people learn to recognise the next attempt. And a single employee can report an obviously dangerous email; Guard then removes it across the whole company, following the policy you set.
In the EU. Your email is never sent to the US, and message contents aren't stored - Guard keeps only what it needs to show you the threat. A DPA and sub-processor list are published for your security review.
Per protected mailbox, monthly or annually. Shared, disabled and guest mailboxes are always free - you pay only for the people you choose to protect. Adjust seats anytime; changes are prorated. No minimum contract.
Yes. For teams that need full data isolation for security review, our Enterprise plan offers a dedicated single-tenant deployment, with SSO and a custom DPA. Talk to us and we'll set it up.
Yes. Guard keeps each client separate in its own space. An MSP plan (a small per-tenant fee plus a per-protected-mailbox rate) and an operator console are available - start with a free trial on one tenant, then roll out.
See them - free, in minutes, no sales call. Connect Microsoft 365 and watch exactly what's getting through, before you pay a cent.