Mimecast Specialty Practice
Over 100,000 Mimecast users serviced
Email Security Experts
Start Here For Better Email Security.
From Mimecast optimization and DMARC implementation to phishing response automation and user reporting workflows, Select Cybersecurity helps organizations get measurable results from their email security investments.
Full Email Ecosystem Optimization
Office365, Google Workspace, DMARC, marketing tools, end user reporting, continuity, and more.
No New Software Needed
White-glove consulting and services in their purest form
Client Testimonials
Trusted by Security Leadership
Our experience working with Select Cybersecurity has been outstanding. Through their iterative, collaborative approach, they helped us significantly improve the quality of our filtering within just a few months. Their emphasis on gradual engagement—rather than rapid, disruptive changes—allowed us to enhance filtering effectiveness while minimizing risk, resulting in little to no noticeable impact on end users.
Following our initial engagement, we have continued to partner with them for ongoing optimization and regularly rely on their expertise across both our phishing platform (KnowBe4) and secure email gateway (Mimecast). The value they deliver relative to cost is exceptional, and we fully expect to continue working with them for the long term.
Thank you.
-Mary
Director, Information Security Operations and Engineering
The Nature Conservancy
What sets Select Cybersecurity apart is their responsiveness and depth of expertise. Instead of simply selling a product, they took the time to understand our environment, optimize our deployment, and provide practical guidance every step of the way. They have been an extension of our internal IT team.
Sr. Security Engineer
Christian Broadcasting Network
Unified Email Systems
We Help Organizations Improve Their Email.
Enforce Email Security Without Disruption
Reduce administrative overhead while strengthening protection. We use specialized assessments, proven configurations, and sustainable workflows that support both security and business operations.
- Security Assessments
- Configuration Reviews
- Long-Term Workflow Design
Ensure Reliable Email Deliverability
Protect your domain reputation and keep legitimate email flowing. We help organizations implement DMARC, optimize DNS records, and build secure mail flow that supports both protection and deliverability.
- DMARC Implementation
- DNS Optimization
- Mail Flow Best Practices
Optimize Email Routing and Integrations
Connect your email security ecosystem for greater visibility and efficiency. We bring expertise across leading platforms and help organizations streamline how security tools work together.
- Mimecast
- KnowBe4 / PhishER
- Abnormal Security
- Microsoft 365 and Google Workspace
Accelerate Time to Value
Reach a fully optimized email security environment faster. Our structured approach helps organizations improve protection, efficiency, and operational maturity in as little as three months.
- Rapid Assessments
- Prioritized Improvements
- Full Optimization Roadmap
Real Results
350
Users Supported
100%
Optimized
75%+
Reduction in Administrative Overhead
12-Month
Transformation
A 350-user manufacturing company engaged Select Cybersecurity for a comprehensive email security assessment. Their initial assessment score was 60%, revealing opportunities to improve security controls, operational efficiency, and platform utilization.
Over the following year, we worked alongside their team to systematically strengthen their email security program.
Operational improvements delivered:
Today, the organization operates a significantly more secure, efficient, and mature email environment while spending less time managing it.
Featured Engineering Project
Knowbe4 PhishER and Mimecast
Most phishing-reporting workflows stop at analysis. We wanted to take protection one step further.
Our custom KnowBe4 PhishER and Mimecast integration helps organizations automatically convert validated phishing reports into actionable protection. When malicious messages are identified, sender blocks can be applied directly within Mimecast, reducing manual effort and helping stop repeat attacks faster.
This project reflects our philosophy: email security should not only be secure, it should be efficient, automated, and continuously improving.
At Select Cybersecurity, we do not just maintain security platforms. We build solutions that make them work better together.
Complimentary Best Practice Assessment
Know Where You Stand
Most organizations never receive an independent review of their email security configuration.
Our complimentary Best Practice Assessment evaluates your environment against established security and operational standards, helping identify opportunities to improve protection, efficiency, and platform utilization.
You will receive:
- A detailed assessment score
- A review of critical security controls
- Configuration and policy recommendations
- Operational improvement opportunities
- A roadmap for strengthening your environment
Whether you choose to work with us afterward or not, you will leave with actionable recommendations and a clearer understanding of your email security posture.
Request Your Free AssessmentSolution Blog
Insights that turn cybersecurity into business action.
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Knowbe4 and Mimecast Email Integration
Learn about Knowbe4 and Mimecast Email Integration and how it applies to Mimecast, email security, and security operations.
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Mimecast or Abnormal?
Learn about Mimecast or Abnormal? and how it applies to Mimecast, email security, and security operations.
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Mimecast Email Continuity Planning
Learn about Mimecast Email Continuity Planning and how it applies to Mimecast, email security, and security operations.
About Select Cybersecurity
We empower teams to get the best email security from Mimecast.
Select Cybersecurity LLC applies battle-tested practices from thousands of customer engagements to help organizations improve policy quality, reduce disruption, and increase real-world email threat protection.