Email Security Administrator

Overview

1. Platform Administration & Monitoring

• Perform daily administration and health monitoring of the email security gateway
• Ensure system availability, performance, and stability
• Monitor dashboards, alerts, and security events in real time

2. Policy Management & Optimization

• Configure, maintain, and tune email security policies
• Manage anti-spam, anti-phishing, malware filtering, and spoofing protection rules
• Continuously improve filtering accuracy and reduce false positives/negatives

3. Quarantine & Mail Handling

• Review quarantined emails and support safe release workflows
• Validate false positives and ensure secure message delivery
• Handle user requests related to blocked/quarantined emails

4. Mail Flow & Integration Support

• Troubleshoot end-to-end mail flow issues across on-premises gateway and Microsoft 365
• Manage SMTP routing, mail connectors, and relay configurations
• Ensure seamless integration between security gateway, DNS, and email systems

5. Threat Investigation & Response

• Investigate spam, phishing, malware, spoofing, and impersonation attempts
• Perform log analysis and correlate security events
• Support incident response in coordination with SOC teams

6. Security Protocol & Email Authentication

• Manage and validate SPF, DKIM, DMARC, and TLS configurations
• Ensure email authentication standards are correctly implemented and enforced

7. Collaboration & Escalation Management

• Coordinate with infrastructure, network, SOC, and messaging teams
• Work with vendors for issue escalation, RCA tracking, and resolution follow-up

8. Reporting & Audit Support

• Generate operational and security reports (threat trends, blocked mail, system health)
• Support internal and external audit requirements
• Maintain documentation for configurations, incidents, and changes

9. Change & Maintenance Support

• Support system upgrades, patches, and maintenance activities
• Execute change requests following approval processes
• Ensure minimal disruption during updates and migrations

Requirements

• Proven experience in email security gateway administration (on-prem or hybrid environments)
• Strong hands-on knowledge of mail flow architecture and SMTP routing
• Experience working with Microsoft 365 mail systems
• Deep understanding of:
• SMTP, MX records, DNS
• SPF, DKIM, DMARC authentication
• TLS encryption for email transport
• Experience in phishing, spam, malware analysis, and incident handling
• Familiarity with SOC environments and security escalation workflows
• Strong troubleshooting skills for mail flow and connectivity issues