Lion Group

Email protection

Email protection for business: Microsoft 365 and Google Workspace

In short: good business email protection combines native filtering, a behavioral anti-phishing layer against BEC and account takeover, MFA, and DMARC enforcement. Lion Group Cyber Security deploys all of it in minutes, with no MX record change.

Get an email protection check

Email protection checklist

  • Turn on MFA for every mailbox, including shared and admin accounts
  • Add API-based anti-phishing that detects BEC, impersonation and account takeover
  • Enable automated removal of malicious mail from every mailbox that received it
  • Give users a one-click report button and short, regular phishing simulations
  • Publish SPF and DKIM for every sending service, then move DMARC to p=reject
  • Review mailbox forwarding and inbox rules — attackers use them to hide

Email security & anti-phishing

How we stop phishing and BEC.

DMARC management

Stop others spoofing your domain.

IRONSCALES

The platform we deploy.

Email protection FAQ

What is the best email protection for a small business?

A layered setup: the native filtering in Microsoft 365 or Google Workspace, an API-based anti-phishing layer that detects BEC and impersonation by behavior, MFA on every mailbox, and SPF, DKIM and DMARC enforcement on your domain. This covers inbound attacks and stops others spoofing you.

Is Microsoft 365 email protection enough?

It blocks most spam and known malware, but socially engineered attacks with no link or attachment — invoice fraud, CEO fraud, supplier account changes — often get through. Most organizations add a dedicated anti-phishing layer on top.

How long does it take to add email protection?

With API integration, minutes. There is no MX record change and no agents, and historical mailboxes are scanned on day one.