Set up your DMARC record policy

To make the HelpDesk contact form work properly, adjust the DMARC policy from aspf=s (strict) to aspf=r (relaxed).

This change allows subdomains to meet SPF requirements, facilitating smoother email authentication without significantly compromising security.

Differences between relaxed and strict alignment

• Relaxed alignment (aspf=r): Permits subdomains to satisfy SPF, giving greater flexibility.

• Strict alignment (aspf=s): Requires exact domain matches, improving security but reducing flexibility.

To adjust the DMARC policy, follow these steps:

1. Access DNS management. Log in to your domain registrar or DNS hosting provider.

2. Locate DMARC record. Find the current DMARC record in your DNS settings. It typically looks like _dmarc.yourdomain.com.

3. Edit DMARC policy. Change the aspf tag from aspf=s (strict) to aspf=r (relaxed). The updated record should look something like this: v=DMARC1; p=none; sp=none; aspf=r;

4. Save changes. Save the updated DNS settings.

Read the following example to fully understand the process.

Relaxed SPF alignment:

• DMARC Record: v=DMARC1; p=none; rua=mailto:dmarc-alert@example.com; aspf=r;

• From Address: sales@marketing.example.com

• Return Path: marketing.example.com

• Result: SPF is relaxedly aligned.

Relaxed DKIM alignment:

• DMARC Record: v=DMARC1; p=none; rua=mailto:dmarc-alert@example.com; adkim=r;

• From Address: sales@marketing.example.com

• DKIM Domain: example.

• Result: DKIM is relaxedly aligned.