Email Security & Deliverability That Actually Works

Your emails are under cyber attack. Your legitimate messages are being blocked from reaching recipient inboxes. We fix both.



We’re email experts. At SH Consulting, we don't just patch email problems - we build security-first infrastructure that protects your business from abuse while ensuring your legitimate emails reach the inbox every time.

The Email Crisis No One Talks About
35%
of companies are being spoofed - without even knowing it
30%
is considered a "good" open rate across most industries
1.5%
is the average spam complaint rate for newsletter and similar email campaigns

The problem: Email deliverability and security aren't separate issues. As providers like Google and Microsoft tighten defenses against bad actors, poorly configured legitimate senders get caught in the crossfire.

Our solution: Security-first email infrastructure that stops abuse AND ensures email delivery. You don't use ours, we improve & re-build yours. This is important because it gives you flexibility to choose among email partners and avoid vendor lock-in.

What We Do

Email Security

Deploy bulletproof authentication, enable security gateways, and monitor for domain spoofing, phishing, adversary-in-the-middle downgrades, and business email compromise. When incidents occur, we provide rapid forensic analysis and work with your team on investigation and remediation.

Email Deliverability

Full-stack deliverability audits, blacklist remediation, and infrastructure architecture. From startup SaaS to enterprise - we embed with your team to improve inbox placement and sender reputation. Our industry relationships with deliverability teams enable quick resolution of blocking issues and reputation recovery.

Security Research

Continuous vulnerability research across email servers, DNS infrastructure, and authentication protocols. We discover and mitigate threats before they're exploited in the wild.

System Consolidation

Eliminate email infrastructure sprawl. Consolidate multiple ESPs, legacy mail transfer agents (MTAs), and fragmented tools into unified, cost-effective email systems that scale.

Service Packages

DIAGNOSE
Email Deliverability Audit
Book a Call

We analyze your sending infrastructure, IP and domain reputation, content, engagement metrics, and sender behavior to identify exactly what's hurting your inbox placement.

You get a prioritized findings report, executive summary, and two live walkthrough sessions with your team.

SPF/DKIM/DMARC alignment review · IP and domain reputation assessment · Sending platform architecture audit · Bounce, complaint, and engagement analysis by mailbox provider · Sender-level segmentation and risk ranking · Content and header evaluation · List hygiene and suppression review

Tech detail

Tech detail

Email & DNS Security Audit
Book a Call

We assess your domain's exposure to spoofing, impersonation, phishing, email interception, and DNS manipulation — and tell you exactly where the gaps are.

You get a risk-rated findings report with prioritized recommendations.

DNS zone integrity and record hygiene · DNSSEC, CAA, MTA-STS, TLS-RPT evaluation · DMARC/SPF/DKIM policy and alignment analysis · Dangling DNS and subdomain takeover risk · Typosquatting exposure · Browser security header review · Certificate issuance controls

Tech detail

Tech detail

FIX
Email & DNS Security Setup
Book a Call

We implement the full stack of email authentication, transport encryption, and DNS security controls your domain needs — from SPF and DKIM to DNSSEC and MTA-STS.

Scoped to your stack. We assess what you need during the discovery call and configure accordingly.

SPF, DKIM, DMARC configuration and enforcement · MTA-STS + TLS-RPT · DNSSEC signing · CAA records · Browser security headers (CSP, HSTS, COOP/COEP/CORP, Permissions-Policy)

Tech detail

Tech detail

Email Deliverability Recovery
Book a Call

Your emails are landing in spam, your IP got blocklisted, or a provider is blocking you. We diagnose the cause, execute the fix, and rebuild your sending reputation.

Recovery engagements frequently transition into Managed Deliverability once the immediate crisis is resolved.

Root cause analysis across IPs, domains, and sending streams · Blocklist delisting · Authentication and DNS remediation · Controlled IP/domain warmup · Provider-specific escalation (Gmail, Microsoft, Yahoo) · Sending behavior and segmentation correction · Weekly check-ins until metrics stabilize

Tech detail

Tech detail

PROTECT
Managed Email Deliverability
Book a Call

We actively manage your sender reputation, inbox placement, and email performance on an ongoing basis — so problems get caught before they cost you revenue.

Regular strategy sessions, infrastructure optimization, content and engagement guidance, reputation monitoring, list hygiene oversight, and custom reporting dashboards.

Most clients begin with an audit and transition to managed services after remediation is complete.

Weekly/bi-weekly strategy calls · Google Postmaster, Microsoft SNDS, and blocklist monitoring · ESP architecture and IP pool optimization · Engagement segmentation and cadence tuning · Re-engagement and sunsetting oversight · Suppression sync · Provider-level escalations · Custom dashboards: inbox placement, reputation trajectories, provider-level performance

Tech detail

Tech detail

Ongoing Security Monitoring
Book a Call

After hardening is in place, we monitor your email authentication, DNS integrity, and platform security to ensure controls stay enforced as your infrastructure evolves.

Continuous SPF/DKIM/DMARC/
DNSSEC/MTA-STS/TLS-RPT monitoring · DMARC and TLS report analysis · DNS change detection · Cloudflare signal review (if applicable) · Monthly security posture report

Tech detail

Tech detail

Trusted by Hundreds of Businesses and Technology Providers

Our Clients See Real Results

70%+
open rates
(vs. 30% industry average)
15%+
conversion rates
for non-transactional emails
0.3%
spam complaint rates
(vs. 1.5% average)

Why Technical and Business Leaders Choose Us

We execute, not just advise
Hands-on implementation across your entire email stack

Industry relationships
Direct access to email abuse, technical, and deliverability teams at major providers
Full-stack expertise
From DNS configuration to email service provider (ESP) migration to forensic analysis

Proven at scale
Team includes former SendGrid Head of Deliverability who managed 20 billion monthly emails

Trusted by Growing & Well-Established Organizations

From fintech startups to government agencies, we protect organizations that can't afford email failures. Whether you're using Google Workspace, Microsoft 365, SendGrid, or custom SMTP stacks we build layered security that works with your existing infrastructure.

Ready to stop playing defense with your email?

Contact us today to eliminate vulnerabilities and ensure your email messages reach their destination.


Contact Us