Email Security
At SH Consulting, we help organizations protect email infrastructure from abuse, fraud, and targeted attacks. Whether you’re a growing real estate firm, SaaS platform, fintech startup, government agency, or system integrator, our goal is to help you eliminate vulnerabilities that attackers exploit and replace them with scalable, enforceable, real-time protections.
We secure your entire email environment - from DNS and authentication protocols to abuse monitoring (such as stopping spam, malware, and malicious content), policy enforcement, and post-incident response.
What We Do
Deployment and alignment of SPF, DKIM, and DMARC
Subdomain policy segmentation and protection of shadow domains (web pages set up for search engines instead of humans)
DMARC enforcement strategies with full compliance diagnostics
Implementation of email specification best practices including BIMI, MTA-STS, TLS-RPT, DNSSEC, and CAA
Post-incident investigation (spoofing, phishing, impersonation, etc.)
Continuous DNS zone auditing and change monitoring
Blacklist remediation, domain/IP recovery, and trust rebuilding
Real-time monitoring of abuse patterns and infrastructure anomalies
Forensic support for domain spoofing, header analysis, and attack tracing
Our Approach
We don’t just configure DNS records - we build layered security architectures designed for your stack, business model, and regulatory landscape. Whether you use Google Workspace, Microsoft 365, or custom SMTP stacks, we provide:
Threats We Help Prevent
Domain spoofing & brand impersonation
Phishing & spear phishing
Business Email Compromise (BEC), where malicious actors impersonate trusted parties
TLS downgrade and man-in-the-middle attacks that force systems to use outdated, insecure encryption - making them more vulnerable to cybercrime
DNS hijacking & CNAME dangling that can steal domain registrations from the legitimate owners
Email bombing & message replay that overwhelm an email server and prevent receipt or sending of legitimate emails
SSL mis-issuance & misconfiguration that fake digital certificates
Server abuse, open relays, and shadow traffic
Recent Work
364 domains, 79 of them being spoofed
Only a handful were ever meant to send mail. DMARC monitoring showed the rest carrying unauthenticated traffic from IPs worldwide. We locked every dormant domain down with p=reject, null MX, and SPF - all.
We maintain direct lines of communication with abuse and security teams at Google, Microsoft, Yahoo, and other major providers.
We also work closely with DNSBL/RBL operators (that maintain blacklisted lists of fraudulent sites) and spam trap vendors to ensure we can proactively respond and escalate issues before they become reputation events.
Email security is a foundational layer of trust. We help you build and maintain it - and act fast when things go wrong.
