What is Sentaro?
Sentaro is AI email security for Microsoft 365 and Google Workspace. It connects over API—no MX change—and lives inside your tenant so it can detect phishing, business email compromise, invoice fraud, and risky connected apps before users become the last line of defense.
If your team still relies on people spotting lookalike domains and AI-written phishing, Sentaro is built to read intent and relationships, then deliver, flag, or quarantine automatically.
Why Sentaro Stands Out
Email is still the #1 intrusion path for many EU organizations. Sentaro focuses on:
- API deployment — protect Microsoft 365 and Google Workspace without changing mail routing
- One security engine — messages, apps, identity signals, and (roadmap) behavioral patterns feed one verdict layer
- Action, not just alerts — harmless mail passes; suspicious mail is held; threats are quarantined with admin notification
- Connected-app risk — surface OAuth grants, unverified publishers, and over-scoped integrations
- European control plane — Swedish company, Azure with EU data considerations, designed for firms answering to DORA and NIS2 expectations
How Sentaro Works
Signals In
- Message — email (Slack & Teams on the roadmap)
- App — OAuth grants and integrations
- Identity — credential leaks and lookalike domains (expanding)
- Behavioral — access and data-movement anomalies (coming soon)
Verdict and Action
| Verdict | What happens |
|---------|--------------|
| Harmless | Delivered untouched—no friction, no ticket |
| Suspicious | Flagged inline and held until verified |
| Threat | Quarantined in the inbox; admin notified |
Real Attack Chains
Sentaro is designed for multi-step attacks: lookalike domain registration, CFO “reply” impersonation with no real thread, malicious document-viewer OAuth consent, and later mailbox behavior that does not match the owner.
Who Should Use Sentaro?
Sentaro is a strong fit for:
- Microsoft 365 or Google Workspace teams that cannot (or will not) change MX
- Security and IT leaders fighting BEC, invoice fraud, and AI phishing
- EU / regulated firms that need evidence-ready controls and jurisdictional clarity
- Growing companies where users still click, reply, and grant app permissions under pressure
Getting Started
- Visit Sentaro
- Connect Microsoft 365 or Google Workspace over API
- Review quarantine, flags, and connected-app risk reports
- Align admin notification and verification workflows with your SOC / IT process
Bottom Line
If phishing and BEC still start with a single inbox mistake, Sentaro is worth a look. API-based protection for Microsoft 365 and Google Workspace, inline verdicts, and EU-oriented architecture make it a practical email security layer without an MX migration project.
Affiliate Disclosure
This article contains affiliate links to Sentaro. We may earn a commission when you sign up through our links, at no extra cost to you.
Affiliate Disclosure: BetterAiBots.com has an affiliate relationship with Sentaro.
Important Disclaimers
Pricing and Terms: Verify current pricing, coverage, and roadmap features directly with Sentaro.
Security Responsibility: Email security tools reduce risk but do not eliminate it. Maintain user training, admin review, and incident response processes.
Where Sentaro fits in a real workflow
The easiest way to judge Sentaro is to place it inside the work you already do. Start with one repeatable task, one owner, and one clear result you want to improve. If the tool helps that task happen faster or with fewer missed steps, it has a stronger case for staying in your stack.
The features worth paying closest attention to are API-based email security, Microsoft 365 & Google Workspace, Phishing & BEC detection, OAuth / connected-app risk, Inline quarantine & admin alerts. Those details matter more than a long feature list because they show whether Sentaro can support the daily work behind the promise.
What to check before you choose Sentaro
- Does Sentaro connect with the tools you already use?
- Can you test it on one real project before rolling it out broadly?
- Will the person using it every week understand the workflow without constant help?
- Are the reporting, exports, permissions, or collaboration features strong enough for your team?
- Does the pricing still make sense after the trial, add-ons, usage limits, or seat costs are included?
How to get more value from Sentaro
Treat the first week as a focused test, not a full migration. Choose one use case, gather the inputs the tool needs, and compare the output against your current baseline. Keep the parts that save time or improve quality, and ignore features that do not support the outcome you actually care about.
For teams, write down when Sentaro should be used, who reviews the output, and what a good result looks like. That small amount of process keeps the tool from becoming another experiment that never turns into a habit.
Sentaro FAQ
What is Sentaro best used for?
Sentaro is best used when you need aI email security for Microsoft 365 and Google Workspace that detects phishing, BEC, and risky OAuth apps inside your tenant with no MX change. The strongest fit is a workflow where the tool saves time, improves consistency, or makes a repeated task easier to manage.
Who is Sentaro best for?
Sentaro is best for marketers who need to plan, create, test, or report on campaigns without jumping between too many tools. It is also worth testing if your team already has the process in place and needs better execution, tracking, or output quality.
Who should skip Sentaro?
It is probably not the right fit if you only need an occasional one-off asset and do not plan to measure performance.
How should you test Sentaro before committing?
Pick one real project, run it through Sentaro, and compare the result against your normal process. Look at setup time, output quality, integrations, reporting, and whether the tool still feels useful after the first test.
What should you compare Sentaro with?
Compare it with the tools you already use for planning, publishing, analytics, creative production, and reporting.