What is Source Configuration for DMARC?
Source configuration in DMARC involves integrating your email sources (e.g., email servers or third-party services like Gmail, Office 365, Mailchimp) with your domain's DMARC setup. This process ensures that all emails sent from your domain are authenticated using SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail).
By configuring these sources correctly, you protect your domain from email spoofing, phishing, and other malicious activities.
Steps to Configure Your Email Sources for DMARC
1. Identify Your Email Services
- Identify all the email services or servers you use for sending emails (e.g., G Suite, Microsoft 365, etc.)
2. Add SPF Record for Your Sources
- SPF ensures only authorized senders can send emails on behalf of your domain
Example SPF Record:
v=spf1 include:_spf.google.com include:sendgrid.net ~all
This example allows Google and SendGrid to send emails on behalf of your domain. Add this SPF record to your DNS settings.
3. Set Up DKIM for Your Email Services
DKIM adds a digital signature to your emails, verifying they’re from the actual sender.
Example DKIM Setup for Google:
google._domainkey.yourdomain.com CNAME google.com
Work with your email provider to generate the DKIM record and add it to your DNS.
4. Configure Your DMARC Policy
- DMARC (Domain-based Message Authentication, Reporting, and Conformance) helps define how your email domain handles suspicious messages
Example DMARC Record:
v=DMARC1; p=reject; rua=mailto:dmarc-reports@yourdomain.com
This example sets your DMARC policy to "reject" emails that fail authentication checks and send reports to your email.
Check Your DMARC Integration
Once you’ve configured your SPF, DKIM, and DMARC records, it's important to verify if they’re working properly.
- Use YourDMARC to verify that your email sources are correctly configured and authenticated
Watch this video including each step with detail. Start configuring your sources with YourDMARC for enhanced email protection.
Get Started Now: https://www.yourdmarc.com/signup
