ADVERT
📬 MX Record Checker
List MX records to see which mail exchangers handle email for a domain and validate deliverability setups.
MX Record Checker
Inspect mail exchanger records to confirm routing and priorities for your domain's email infrastructure.
What you'll see
- Mail hostnames with their associated priority values in the order resolvers will use them.
- TTL information so you know when updates will be respected by remote servers.
- Additional section data showing cached A or AAAA glue records where available.
Common use cases
- Validate a new email service configuration before switching MX at the registrar.
- Review failover order to ensure backup mail gateways are still reachable.
- Cross-check SPF or DKIM changes against the hosts actually receiving mail.
DNS Resolver
Check MX records to see which mail servers accept email for a domain and verify SPF or deliverability changes.
Prepared query:
example.comTroubleshooting tips
- Remember that lower preference numbers are used first—keep critical hosts at the top.
- Make sure each MX target also has valid A or AAAA records; some providers require glue.
- After edits, monitor bounce logs until the TTL expires to confirm remote servers see the new configuration.
FAQ
- What does a priority value of 0 mean?
- Lower numbers are tried first. A value of 0 usually indicates the primary mail exchanger for the domain.
- Why don't I see an MX record?
- If no MX exists, mail servers fall back to the domain's A record. Add explicit MX entries to control delivery.
- Do I need to add SPF or DKIM here?
- SPF, DKIM, and DMARC use TXT records. Check those separately once you know which hosts receive your mail.
ADVERT
ADVERT