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🌐 DNS Deliverability Checker

Quickly verify the core DNS records that control your email deliverability (SPF, DKIM, DMARC, MX).

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💡 What This Tool Does: Core Function
The **DNS Deliverability Checker** queries public DNS servers for essential records related to email sending. It looks specifically for four critical records:
  • **MX (Mail Exchanger):** Shows where your incoming email should be delivered.
  • **A (Address):** Maps your domain name to an IP address.
  • **SPF (Sender Policy Framework):** Authorizes mail servers allowed to send email on behalf of your domain.
  • **DKIM (DomainKeys Identified Mail):** Provides an encryption key used to sign outgoing emails, proving they haven't been tampered with.
  • **DMARC (Domain-based Message Authentication, Reporting & Conformance):** Sets the policy for how receiving servers should handle emails that fail SPF or DKIM checks (e.g., quarantine or reject).
🛡️ Why This Tool Is Important: Benefits
The health of these records directly impacts whether your emails land in the **Primary Inbox** or the spam folder. Key benefits include:
  • **Preventing Spoofing:** SPF, DKIM, and DMARC prevent spammers from sending emails that look like they came from your domain.
  • **Maximizing Deliverability:** Having all three records correctly configured is a mandatory requirement for major mailbox providers (like Google and Microsoft) to trust your messages.
  • **Troubleshooting:** Quickly identify missing or incorrect records that are causing immediate deliverability problems.
🛠️ How to Use This Tool: Quick Guide
  1. **Enter Domain:** Type the root domain you use for sending emails (e.g., inboxassist.com) into the input field. Do not include www. or http://.
  2. **Run Check:** Click the **Run Check** button.
  3. **Review Status:** Look for the status next to each record. **Active (✔ OK)** is good. **Missing (✖ Missing)** means you need to take action.
  4. **Actionable Tips:** Read the descriptive text and the specific record data to verify the configuration details.
⚠️ Downsides & Limitations
This is a **technical check** and cannot verify all aspects of email health. Key limitations:
  • **IP Reputation:** It cannot check if your domain's associated IP address is on any **global blacklists**. Use the **Blacklist Checker** tool for that.
  • **Content Score:** It doesn't check the *content* of your email for spam triggers. Use the **Template Grader** tool.
  • **Record Errors:** It verifies *existence* and *basic syntax*, but complex configuration errors within the record data (e.g., too many lookups in an SPF record) may require manual review.