Stop Phishing, BEC, and Malware Before They Reach Your Inbox
Email security controls protect against phishing, business email compromise (BEC), malware delivery, and spam — filtering inbound threats before they reach users, preventing impersonation attacks through authentication enforcement, and detecting account compromise through behavioral analysis.
What RLM Delivers on Email Security
Email remains the #1 initial access vector in enterprise breaches. Phishing campaigns are increasingly sophisticated — bypassing legacy email gateways with AI-generated content and evasion techniques. Modern email security requires layered controls that go beyond standard spam filtering.
How We Approach Email Security
Our security advisory runs from discovery and market evaluation through vendor selection and post-deployment optimization — scoped to the Email Security decision in front of you.
Current Email Security Assessment
We evaluate your existing email security posture — inbound filtering effectiveness, authentication record configuration (SPF, DKIM, DMARC), impersonation protection, and the phishing simulation results that quantify your human risk.
Platform Evaluation
We evaluate email security platforms — Proofpoint, Mimecast, Abnormal Security, Microsoft Defender for Office 365, and cloud-native email security — against your threat profile, M365/Google Workspace environment, and the advanced threat capabilities your risk profile requires.
Authentication Record Deployment
SPF, DKIM, and DMARC prevent domain spoofing and provide the authentication foundation for email security. We assess your current authentication posture and design the enforcement path to DMARC reject policy.
Anti-Phishing Training Integration
Technology controls reduce phishing success rates; security awareness training reduces click rates. We design the integration between email security controls and your phishing simulation and training program.
Email Security Evaluation Criteria
The questions below are the ones that decide whether a Email Security investment pays back — and the ones vendors are least eager to answer.
BEC Detection Capability
Business Email Compromise — impersonation of executives and vendors requesting wire transfers — causes significant financial losses. Evaluate the platform's BEC detection capability specifically, including lookalike domain detection and display name spoofing.
AI-Powered Phishing Bypass
Attackers increasingly use AI to generate phishing content that bypasses URL filtering and content analysis. Evaluate the platform's behavioral analysis and anomaly detection capabilities that catch novel phishing that signature-based controls miss.
Account Takeover Detection
Compromised email accounts send phishing from trusted domains that bypass inbound filtering. Evaluate behavioral analysis capabilities that detect account compromise through anomalous sending patterns, login anomalies, and rule changes.
M365 / Google Workspace Integration
Native email security integrations with M365 and Google Workspace provide deeper API access than MX-record-based gateways. Evaluate whether API-based integration provides better detection for your specific environment.
URL Rewriting & Time-of-Click Protection
Phishing URLs that are clean at delivery become malicious after delivery (delayed weaponization). Evaluate time-of-click URL analysis that checks URL reputation when a user actually clicks — not just at delivery time.
Quarantine Management
Email security quarantines generate end-user friction and helpdesk volume. Evaluate the quarantine workflow — user self-service release, false positive rates, and the helpdesk burden — before selecting a platform.
"RLM helped us build a security program that satisfied our board and our auditors — without locking us into a single vendor's roadmap. Their independence is the whole point."
We stay involved through implementation, because selection is the easy half.
Where This Matters Most
Sector-specific considerations we see repeatedly in security engagements.
A Sample of the Security Providers We Evaluate
RLM is vendor neutral. These are among 600+ providers in our evaluation set — inclusion here is not an endorsement, and we are paid by the provider you choose, not by any provider in particular. How that works →
Ready to Move on Email Security?
Start with a no-cost conversation with an RLM security advisor — vendor neutral, no agenda, just clarity on where your gaps are and the right path to close them.
Talk to a Security Advisor