Comparing Mimecast Email Security vs M365 Email Security: A Comprehensive Guide
Shawn Akins • May 13, 2025
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Discover the Key Differences Between Mimecast and M365 Email Security Solutions and Learn Why Akins IT is Your Trusted Partner for Email Protection
In today's digital landscape, email security is paramount for businesses of all sizes. At Akins IT, we understand the critical importance of protecting your organization's email communications from threats such as phishing, ransomware, and business email compromise (BEC). In this blog, we will compare two leading email security solutions: Mimecast and Microsoft 365 (M365) Email Security. Our goal is to help you make an informed decision and demonstrate why Akins IT is your go-to expert for email security solutions.
Mimecast Email Security
Mimecast is renowned for its comprehensive email security solutions, designed to protect against a wide range of email-borne threats. Here are some key features of Mimecast's email security:
- Advanced Threat Protection: Mimecast uses AI-powered detection to block sophisticated threats, including phishing, ransomware, and impersonation attacks. Their advanced BEC defense leverages machine learning to identify and prevent BEC threats.
- Deployment Flexibility: Mimecast offers various deployment options, including cloud-native secure email gateways and integrated solutions that enhance existing M365 protections.
- Comprehensive Phishing Protection: Real-time threat analysis and AI-driven threat removal ensure that phishing emails are blocked before they reach the inbox.
- Integrated Email Intelligence: Mimecast integrates with over 250 security tools, enabling enhanced threat sharing and detection.
- Additional Features: Mimecast provides features such as email continuity, internal email protection, and large file send capabilities, which are not available in M365.
M365 Email Security
Microsoft 365 Email Security, part of the Microsoft Defender for Office 365 suite, offers robust protection for organizations using M365. Here are some key features of M365 Email Security:
- Threat Explorer and Real-time Detections: These tools help Security Operations (SecOps) teams investigate and respond to threats in near real-time.
- Anti-phishing Policies: M365 includes advanced anti-phishing policies that protect against user and domain impersonation.
- Email Authentication: M365 uses SPF, DKIM, and DMARC to authenticate emails and prevent spoofing.
- Integration with Microsoft Ecosystem: M365 Email Security seamlessly integrates with other Microsoft security solutions, providing a unified security posture.
- Secure Score Dashboard: This feature aggregates data from customer environments, providing trending data on secure scores to help manage security postures.
Why Choose Akins IT for Your Email Security Needs?
At Akins IT, we pride ourselves on being experts in email security. Our team has extensive experience in deploying and managing both Mimecast and M365 Email Security solutions. Here’s why you should trust us with your email security:
- Expertise: Our team includes certified professionals with deep knowledge of both Mimecast and M365 security solutions.
- Tailored Solutions: We understand that every organization is unique. We work closely with you to design and implement email security solutions that meet your specific needs.
- Comprehensive Support: From initial consultation to ongoing support, we are committed to ensuring your email security is robust and effective.
- Proven Track Record: We have successfully implemented email security solutions for numerous clients, helping them protect their email communications and reduce risk.
Call to Action
Ready to enhance your email security? Contact Akins IT today to schedule a consultation and learn how we can help you protect your organization from email-borne threats. Let us show you why we are the experts in email security.
October 20, 2025 — Early today, Amazon Web Services experienced a major incident centered in its US‑EAST‑1 (N. Virginia) region. AWS reports the event began around 12:11 a.m. PT and tied back to DNS resolution affecting DynamoDB , with mitigation within a couple of hours and recovery continuing thereafter. As the outage rippled, popular services like Snapchat, Venmo, Ring, Roblox, Fortnite , and even some Amazon properties saw disruptions before recovering. If your apps or data are anchored to a single cloud, a morning like this can turn into a help‑desk fire drill. A multi‑cloud or cloud‑smart approach helps you ride through these moments with minimal end‑user impact. What happened (and why it matters) Single‑region fragility: US‑EAST‑1 is massive—and when it sneezes, the internet catches a cold. Incidents here have a history of wide blast radius. Shared dependencies: DNS issues to core services (like DynamoDB endpoints) can cascade across workloads that never directly “touch” that service. Multi‑cloud: practical resilience, not buzzwords For mid‑sized orgs, schools, and local government, multi‑cloud doesn’t have to mean “every app in every cloud.” It means thoughtful redundancy where it counts : Multi‑region or multi‑provider failover for critical apps Run active/standby across AWS and Azure (or another provider), or at least across two AWS regions with automated failover. Start with citizen‑facing portals, SIS/LMS access, emergency comms, and payment gateways. Portable platforms Use Kubernetes and containers, keep state externalized, and standardize infra with Terraform/Ansible so you can redeploy fast when a region (or a provider) wobbles. (Today’s DNS hiccup is exactly the kind of scenario this protects against.) Resilient data layers Replicate data asynchronously across clouds/regions; choose databases with cross‑region failover and test RPO/RTO quarterly. If you rely on a managed database tied to one region, design an escape hatch. Traffic and identity that float Use global traffic managers/DNS to shift users automatically; keep identity (MFA/SSO) highly available and not hard‑wired to a single provider’s control plane. Run the playbook Document health checks, automated cutover, and comms templates. Then practice —tabletops and live failovers. Many services today recovered within hours, but only teams with rehearsed playbooks avoided user‑visible downtime. The bottom line Cloud concentration risk is real. Outages will happen—what matters is whether your constituents, students, and staff feel it. A pragmatic multi‑cloud stance limits the blast radius and keeps your mission‑critical services online when one provider has a bad day. Need a resilience check? Akins IT can help you prioritize which systems should be multi‑cloud, design the right level of redundancy, and validate your failover plan—without overspending. Let’s start with a quick, 30‑minute review of your most critical services and RPO/RTO targets. (No slideware, just actionable next steps.)
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