Advanced Filtering
Spam filters built into M365 and Gmail catch obvious threats, but they miss sophisticated ones. We configure advanced filtering layers that catch phishing, spoofed domains and malicious attachments before they reach your inbox.
Email is the front door that attackers use most. Phishing messages, account takeovers and compromised business emails are responsible for the majority of breaches hitting small and mid-sized businesses right now. If your email isn't properly secured, everything else you've done to protect your business has a hole in it.
Diego Tech secures Microsoft 365 and Gmail environments for Arizona businesses: filtering, multi-factor authentication, account monitoring and the configuration hardening that most businesses never got around to doing when they signed up.
A few years ago, a phishing email was relatively easy to spot. Today, attackers use AI to write messages that read exactly like your bank, your vendor or your CEO. They research your business, use your actual vendor names and mimic communication styles they've studied from previous emails.
Consider what happened to a law firm we worked with. Their email account was compromised after a credential was exposed in a third-party data breach. The attacker sat quietly in the account for weeks, monitoring communication patterns. Then they sent messages to clients redirecting wire transfers to accounts they controlled. By the time anyone noticed, real money had moved.
This is business email compromise (BEC), and it's not rare. It happens to businesses of every size, in every industry. The defense isn't awareness training alone. It's proper technical controls that make such scenarios much harder to pull off.
Spam filters built into M365 and Gmail catch obvious threats, but they miss sophisticated ones. We configure advanced filtering layers that catch phishing, spoofed domains and malicious attachments before they reach your inbox.
A stolen password is the most common way an email account gets taken over. MFA stops that. We enforce MFA across your entire organization and set it up properly so it doesn't slow your team down more than necessary.
We monitor your accounts for suspicious sign-ins, unusual forwarding rules and access from unexpected locations. If an account shows signs of compromise, we catch it early, before the attacker does anything with the access they've gained.
Microsoft 365 and Google Workspace ship with default settings that favor convenience over security. We go through those settings systematically, tighten what needs tightening and document what we changed and why.
SPF, DKIM and DMARC records tell the world which mail servers are authorized to send on behalf of your domain. Without them, anyone can send email that looks like it came from you. We configure and test these records for every client.
Technical controls catch most attacks. People catch the rest. We provide phishing simulation and awareness training so your team knows what to look for and what to do when something looks off.
The two most common business email platforms have different security architectures and different default configurations. Our approach is tailored to the platform you're using.
Microsoft 365: We configure Defender for Office 365, conditional access policies, secure score improvements and Entra ID (formerly Azure AD) protections. M365 has strong security tools built in. Most businesses have them turned off or misconfigured.
Google Workspace: We configure Gmail's advanced phishing and malware protection, manage admin console security settings, set up context-aware access and enforce 2-step verification across the organization.
Email Security Is Part of a Bigger Picture
Email hardening is one piece. For clients who want to address their full security posture, our Cybersecurity & Risk Assessment gives you a scored review across all your systems, not just email. For clients with compliance obligations, see Cybersecurity Frameworks. contact us
Schedule an email security assessment. We'll review your current M365 or Gmail configuration, identify what's misconfigured or missing, and give you a clear list of what to fix.
Questions? Call us at (928) 782-1551 or reach us at .