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 Duration 14 hours

Course Outline

Introduction

  • Email security threats and contemporary challenges.
  • Comparing self-hosted and cloud-based email solutions.
  • Overview of RSPAMD, SpamAssassin, and DMARC.

RSPAMD Setup and Configuration

  • Installing RSPAMD.
  • Initial configuration steps.
  • Utilizing the Web UI and monitoring capabilities.

SpamAssassin Integration

  • Installing SpamAssassin.
  • Configuring filtering rules.
  • Implementing Bayesian filtering.

Email Authentication Protocols

  • Setting up SPF records.
  • Generating DKIM keys.
  • Configuring DNS for SPF and DKIM.

DMARC Deployment

  • Reviewing SPF and DKIM prerequisites.
  • Creating DMARC records.
  • Configuring policies and monitoring effectiveness.

Advanced Filtering Techniques

  • Developing custom rules and scoring models.
  • Integrating blacklists and whitelists.
  • Configuring greylisting.

Monitoring and Maintenance

  • Analyzing logs and generating reports.
  • Tuning performance.
  • Troubleshooting common operational issues.

Summary and Next Steps

  • Reviewing key concepts learned.
  • Discussing best practices for ongoing security.
  • Exploring resources for further learning.

Requirements

  • Proficiency in Linux system administration.
  • Foundational knowledge of DNS and email protocols, including SMTP, IMAP, and POP3.
  • Hands-on experience with command-line utilities and text editors.

Audience

  • System administrators overseeing self-hosted email infrastructure.
  • IT professionals tasked with maintaining email security standards.
  • Security engineers focused on deploying anti-spam measures.

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