Introducing Good Heart Tech's Free DNS & Domain Health Checker

Our Domain & DNS Health Check is live at https://dns.nonprofittools.org.

This free tool helps nonprofits quickly assess the security, email deliverability, and public reputation of their domain. It scans publicly available DNS records and checks them against industry best practices, providing clear recommendations to strengthen your organization's domain configuration.

Whether you're a technical admin or a nonprofit leader, this tool will help you identify common issues like missing SPF, DKIM, or DMARC records, which can impact email delivery and increase vulnerability to phishing attacks.

• Try it now: https://dns.nonprofittools.org

Why it matters: email sender validation in plain language

DNS also protects how your email is seen on the internet. SPF, DKIM, and DMARC work together to reduce spoofing and help legitimate mail reach inboxes instead of spam.

Here's a simple summary:

SPF defines which email servers are authorized to send mail on your behalf.

DKIM digitally signs your messages so recipients know they're authentic.

DMARC builds on SPF and DKIM, providing clear instructions on how to handle suspicious emails and sending reports back to you.

Properly configuring these settings reduces phishing risk and improves the likelihood that your emails will be delivered successfully.

For a step-by-step guide on how to enable and configure these services for your nonprofit, visit our detailed article here:• Email Sender Validation Using DNS (SPF, DKIM, & DMARC)