Configuring and Managing SPF, DKIM, and DMARC
Learn how to increase your organization's email deliverability, and prevent users within it from having their identity stolen in email forgery attacks, simply by publishing relevant DNS records on your domain.
What you'll learn
Email deliverability is a constant challenge for organizations, but this challenge is widely amplified if your domain is not properly secured to prevent attackers from using its name in email forgery attacks to exploit its reputation, which will tarnish or ruin it in the eyes of spam filters and people.
In this course, Configuring and Managing SPF, DKIM, and DMARC, you’ll gain the ability to configure your domain in a way that your legitimate emails will not be mixed up with foreign spam and phishing attacks. First, you’ll learn SPF to publish a whitelist of your email servers. Next, you’ll discover DKIM to sign your emails cryptographically against tampering. Finally, you’ll explore how to use DMARC to publish your policies for SPF and DKIM misalignments against an email's claimed author, and monitor their application with third parties. When you’re finished with this course, you’ll have the skills and knowledge of SPF, DKIM, and DMARC needed to mitigate a wide range of email security attacks against your domain, and to allow spam filters to validate the true origin of your emails.
Software required: None.
Table of contents
- Version Check 0m
- Understanding the Value of SPF 3m
- Analyzing Protocols Used for Email Transmission 5m
- Identifying What SPF Protects 3m
- Using the DNS to Authorize a Mail Transfer Agent 3m
- Performing an SPF Evaluation 4m
- Implementing an SPF Record 4m
- Writing an SPF Record 6m
- Examining SPF Record Examples 2m
- Limiting DNS Queries for SPF Evaluation 2m
- Demo: Sending Identical Emails through Different SMTP Servers 5m
- Forwarding Emails Properly with SRS 4m
- Demo: Retrieving Logged SPF Data from an Email 3m
- Managing SPF Limitations 3m