Are MX records pointing to the right mail servers - before inbound email stops arriving.
Priority-ordered MX hostnames for your domain
Whether MX records resolve correctly
How incoming mail reaches your domain
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Mail server records explained
When MX records point to the wrong host or disappear after a DNS edit, inbound mail bounces silently - often before anyone checks the mail server logs.
An MX lookup queries DNS for Mail Exchange records and priority values that tell senders which servers receive email for a domain. A free MX lookup shows the live routing configuration.
Run a check after switching email providers or editing DNS. Add domains to TotalSiteControl monitoring for alerts when MX records change unexpectedly.
Free TotalSiteControl monitoring - email alerts, no credit card required.
Get notified when mail server records change unexpectedly.
Scheduled lookups catch misconfigurations before mail stops flowing.
See past MX data for troubleshooting and migration verification.
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It queries DNS for Mail Exchange records that tell the internet which servers receive email for a domain.
Yes. Check any public domain instantly - no signup, no credit card, and no limit on one-off lookups.
Wrong or missing MX records are a common cause - inbound mail never reaches your provider servers until DNS is fixed.
Lower numbers are tried first. Higher numbers are backups used when the primary mail server is unavailable.
For redundancy - if one mail server is down, senders try the next priority until one accepts the message.
Yes - run a lookup after migration to confirm MX points to your new provider hostnames, not the old mail server.
Yes. MX routes incoming mail; SPF and DKIM authenticate outgoing mail. Check all three for reliable delivery.
After email provider changes or DNS edits. Monitoring alerts when MX records change unexpectedly.