1
DNS Lookup
/dns-lookup
Review the domain records that public resolvers currently return.
Look up common DNS records for any domain.
Review DNS and email setup
Use this workflow before changing DNS records, diagnosing mail delivery problems, or checking whether a domain publishes the expected email authentication records.
6 tools
Browse all tools
Optional Shared Input
Enter a domain, URL, IP address, email address, or text value once. Workflow links will carry it to compatible tools.
Recommended Tool Order
2
MX Validator
/mx-validator
Check whether mail exchanger records exist and resolve correctly.
Validates and verifies email MX records to ensure proper mail server setup and reliable email delivery.
3
SPF Validator
/spf-validator
Review SPF policy syntax and common sender authorization issues.
Validate Sender Policy Framework (SPF) authentication of a DNS.
4
DKIM Validator
/dkim-validator
Verify selector-based DKIM records used to sign outbound mail.
Validate a DKIM selector and public key record.
5
DMARC Lookup
/dmarc-lookup
Check DMARC policy, reporting addresses, and enforcement posture.
Lookup DMARC records for the domain name in the DNS system.
6
Mail Server Test
/mail-server-test
Run a broader mail-domain check after individual records look correct.
Check a mail domain for MX records, public mail host addresses, PTR records, SPF, DMARC, SMTP banner, EHLO, and STARTTLS support.
Workflow Tip
Run the first tool, review the result, then continue only when the next check answers a useful follow-up question. Not every situation needs every tool in the workflow.
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