MX Record Lookup

Our MX Record Lookup is a tool designed to generate a detailed report covering critical email-related DNS records for any domain. This tool helps domain administrators and IT professionals verify and diagnose DNS configuration impacting email deliverability.

How to Use the MX Record Lookup Tool:

• Input: Enter the domain name you want to analyze.
• Start Analysis: Click on the "DNS Report" button to begin the DNS lookup process.
• View Results: After the analysis completes, the tool will present a report that includes:
  • MX records alongside with with corresponding A, AAAA, and PTR records, if present.
  • SPF and DMARC records.
• Interpret Results: Review each section for issues or misconfigurations. For example:
  • Validate relationship between various email-related resource records associated with the domain, including MX, A, AAAA, and PTR records. Missing or misconfigured DNS records can lead to email delivery problems.

MX Record

Defines mail server for a domain. MX record specifies mail server name and it's preference. A record with lower value has higher preference. For example:

example.com. 1800 IN MX 10 mail-01.example.com.

example.com. 1800 IN MX 20 mail-02.example.com.

DMARC Record

Defines configuration parameters for DMARC (Domain-based Message Authentication, Reporting, and Conformance) - an email authentication protocol designed to protect against email spoofing. For example:

_dmarc.example.com. 3600 IN TXT "v=DMARC1; p=none; rua=mailto:DMARC.report@example.com"

For more detailed DMARC record analysis see our DMARC Record Lookup tool.

SPF Record

Part of email authentication, it defines which mail servers are allowed to send emails on behalf of the domain. Example SPF record:

example.com. 300 IN TXT "v=spf1 ip4:10.1.1.0/24 include:_spf.example.com -all"

For more detailed SPF record analysis see our SPF Record Lookup tool.