Email Security
Full email authentication and anti-phishing hardening, closing the gaps between partial protection and actually secure email.
Who this is for: Businesses that want their email specifically hardened against phishing and spoofing, beyond a general tenant security review.
The Problem
Email remains the single most common way attackers get in, and most businesses have partial protection at best, SPF but no DMARC, or antivirus but no phishing-specific filtering.
Our Solution
We implement full email authentication (SPF, DKIM, DMARC), anti-phishing filtering, and mailbox-level protections, then watch for the compromise patterns that get through anyway.
What's included
- SPF, DKIM, and DMARC configuration and enforcement
- Anti-phishing filtering
- Business email compromise protection
- Mailbox security hardening
- Email compromise response readiness
Partial email authentication is extremely common, and it’s exactly why it doesn’t work: an SPF record without DMARC enforcement leaves a real gap. See our write-up on what SPF, DKIM, and DMARC actually do for why all three matter together.
Benefits
- Fewer successful phishing and spoofing attempts landing in inboxes
- Full email authentication instead of partial coverage
- Faster detection if a mailbox is compromised anyway
Our Process
Audit
Review current email authentication and filtering.
Implement Authentication
Configure and enforce SPF, DKIM, and DMARC.
Deploy Filtering
Add anti-phishing and anti-spoofing protection.
Harden Mailboxes
Lock down forwarding rules and mailbox-level risk.
Monitor
Watch for compromise patterns that get through anyway.
Proven results: See what SPF, DKIM, and DMARC actually do, and why half of small business email is still unprotected. See the write-up →
Frequently asked questions
Do I need all three, SPF, DKIM, and DMARC?
Yes, they work together, SPF and DKIM each catch different spoofing methods, and DMARC tells receiving servers what to do when a message fails either check. Missing one leaves a gap.
Will this break our current email if we use multiple sending services?
It can if configured incorrectly, which is why we test in monitor-only mode before enforcing strict policies.
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Not sure if this is the right fit?
Tell us what's worrying you. We'll tell you what actually needs fixing first.