WordPress Email delivery Auditor: 7 Critical Checks

WordPress email delivery may reach spam when the sending domain lacks properly configured SPF, DKIM, or DMARC authentication. Inbox placement can also be affected by the sending server’s reputation, message content, mailing volume, recipient engagement, and whether the From address aligns with the authenticated domain.

WordPress email delivery messages may fail because the hosting server cannot send mail, the recipient rejects the sending server, DNS records are incomplete, or email authentication fails. A successful WordPress form submission only confirms that WordPress processed the form; it does not prove that the resulting message reached an inbox.

SPF identifies servers authorized to send email for a domain. DKIM adds a verifiable signature to outgoing messages. DMARC evaluates authentication and domain alignment, then tells receiving systems whether failed messages should be monitored, quarantined, or rejected. Together, they help reduce spoofing and improve domain credibility.

No. TrustBeacon evaluates publicly visible DNS, email-authentication, SSL, and domain-trust configuration. It does not send a message through the WordPress mail system, inspect private mail-server settings, or guarantee delivery to a particular recipient or inbox provider.

TrustBeacon Email Delivery and Auditor is read-only. It identifies conditions that may require attention and provides plain-English recommendations and business-impact explanations. It does not automatically change DNS records, hosting settings, WordPress mail configuration, or settings maintained by an external email provider.

No. A favorable audit means the publicly visible signals examined by TrustBeacon appear properly configured. Actual delivery can still be affected by sending reputation, blocklists, message content, rate limits, recipient filtering, SMTP configuration, and other private systems that TrustBeacon cannot inspect.

First, identify every legitimate service that sends email using your domain. This may include your hosting account, Google Workspace, Microsoft 365, a WordPress SMTP service, newsletter software, contact forms, or a transactional-email provider.
Check whether the domain already has an SPF TXT record. A domain should have one consolidated SPF record, not several separate SPF records. Add the sending mechanisms required by each legitimate provider to the existing record.
Do not copy another website’s SPF record. Use the exact include values supplied by your email providers. After confirming that every legitimate sender is represented, test the revised record before considering stronger enforcement such as -all.

~all applies a soft failure to unauthorized senders, while -all applies a hard failure. Stronger enforcement can improve protection against domain spoofing, but it can also reject legitimate messages if a valid sending service was omitted.
Before changing to -all, inventory all legitimate senders, verify that the SPF record includes them, and test mail from WordPress, business email, newsletters, forms, and other services.

DKIM must normally be enabled through the service that sends your email. The provider supplies a selector and one or more DNS records, usually TXT or CNAME records.
Add the supplied record through the domain’s DNS provider. The record name commonly contains the selector followed by ._domainkey, but the exact selector and value must come from the sending provider. After DNS propagates, return to the email provider and complete its verification process.

DMARC is published as a TXT record for _dmarc.yourdomain.com. Before enforcing quarantine or rejection, confirm that legitimate mail passes SPF or DKIM and aligns with the visible From domain.
Many administrators begin with a monitoring policy such as p=none and review DMARC reports. After legitimate senders have been identified and corrected, enforcement can be increased gradually to p=quarantine and eventually p=reject.

These records are added through the service that controls your authoritative DNS. That may be Cloudflare, Hostinger, GoDaddy, Namecheap, your hosting control panel, or another DNS provider.
They are not normally entered inside WordPress. If you are unsure which company controls DNS, check the domain’s authoritative nameservers or ask the hosting provider.

Do not change MX records merely because another email-related check produced a warning. MX records control where incoming email is delivered.
Change them only when migrating email providers or when the current mail provider confirms that they are incorrect. Using the wrong MX records can stop the domain from receiving email.

No. TrustBeacon is read-only. It identifies publicly visible configuration conditions and explains what should be reviewed. DNS changes must be made through the appropriate DNS or email provider.
This prevents the plugin from making a generic change that could interrupt legitimate email service.