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Email Security

Your most-used application is your most-attacked application. Defend it like it.

Abstract message-flow visual representing email security filtering

What it is

Email security is the layered defence of your organisation's primary communication channel: advanced anti-phishing and anti-malware filtering, sandbox detonation of attachments and links, impersonation and business-email-compromise (BEC) protection, and enforcement of the authentication standards — SPF, DKIM and DMARC — that stop attackers sending mail as your domain.

Over ninety percent of successful intrusions begin with an email. It is the one channel every employee opens every day, and the one attackers invest in most heavily — which makes it the highest-return place to concentrate defence.

The business case

Why enterprises need it

  • BEC losses dwarf ransomware headlines

    Business email compromise — a convincing invoice, a spoofed CFO, a changed bank account — causes larger direct financial losses globally than ransomware, and it needs no malware at all. Impersonation defence and payment-workflow controls are the countermeasure.

  • Your domain can be used against your customers

    Without enforced DMARC, anyone can send email that appears to come from your domain — to your customers, partners and banks. Domain authentication protects your brand as much as your inbox.

  • Native filtering alone leaves a gap

    Baseline cloud-mail filtering catches commodity spam; targeted spear-phishing and novel payloads are built to slip past it. Layered detection — reputation, behavioural analysis, sandbox detonation — closes the gap between 'filtered' and 'defended'.

How we deliver

Cloud Armor's approach

  1. Layered architecture on your mail platform

    Whether you run Microsoft 365 or Google Workspace, we design the layering — native controls tuned properly, plus a specialised gateway or API-based layer where risk justifies it — end to end, from inbound filtering to outbound DLP.

  2. DMARC to enforcement, not just monitoring

    Many organisations stall at DMARC p=none forever. We inventory legitimate senders, fix SPF/DKIM alignment across every SaaS platform that mails on your behalf, and take you safely to quarantine and reject.

  3. Impersonation & BEC defence

    Executive-name protection, lookalike-domain detection, external-sender banners with intent, and payment-change verification workflows that pair technology with process.

  4. Detonation, response and user reporting

    Sandboxing for attachments and URLs, one-click user phish reporting feeding the SOC, and automated post-delivery purge when a campaign is identified — wired into Ayati One case management for monitored clients.

Related practice areas

Technologies we deploy

  • Microsoft Defender for Office 365 email security logo
  • Barracuda email protection logo
  • Check Point email security logo
  • Sophos email security logo

Scope a Email engagement

A 30-minute conversation with our engineers is usually enough to map your requirement to a concrete plan and honest estimate.