DNS Inspection
MX Lookup
Inspect authoritative Mail Exchange (MX) records and mail providers.
Quick samples:
| Preference / Priority | Mail Server Hostname | Resolved IP Address | TTL | Status | Action |
|---|
MX Architecture Guidelines
- Lowest priority number indicates the primary receiving mail server (e.g. Priority 10 receives traffic before Priority 20).
- Always point MX records directly to fully qualified domain names (FQDN) with valid A records—never point an MX record to a CNAME.
How It Works in 3 Simple Steps
01
Enter domain
Input the domain name to inspect MX records.
02
Query Mail Servers
Resolve all active MX records sorted by priority rank.
03
Identify Provider
Detect whether the domain uses Google Workspace, Microsoft 365, or custom mail infrastructure.
Pro Tips for Maximum Performance
- Ensure MX records point directly to your primary mail provider (e.g. aspmx.l.google.com).
- Never point MX records to a CNAME alias.
Frequently Asked Questions
An MX (Mail Exchange) record tells sending servers where to deliver emails for your domain.
Lower priority numbers have higher precedence. Sending MTAs try the lowest number first.
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