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 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.

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.
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.
Continuous vulnerability research across email servers, DNS infrastructure, and authentication protocols. We discover and mitigate threats before they're exploited in the wild.
Eliminate email infrastructure sprawl. Consolidate multiple ESPs, legacy mail transfer agents (MTAs), and fragmented tools into unified, cost-effective email systems that scale.
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
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
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
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
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
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

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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.

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

