MX Record Checker
MX records define which mail servers receive email for your domain.
Result for gmail.com
Found
| Priority | Exchange |
|---|---|
| 5 | gmail-smtp-in.l.google.com. |
| 10 | alt1.gmail-smtp-in.l.google.com. |
| 20 | alt2.gmail-smtp-in.l.google.com. |
| 30 | alt3.gmail-smtp-in.l.google.com. |
| 40 | alt4.gmail-smtp-in.l.google.com. |
FAQ
What are MX records?
They define which servers receive inbound email for a domain and their priority order.
Do I need MX records?
Only if you want to receive email on this domain. Sending can work without MX depending on provider.
Why is Exchange shown as “.”?
Some configurations use a null MX (RFC 7505) to explicitly disable email receiving.
Should I have multiple MX servers?
Usually yes for redundancy, unless your provider explicitly uses one.
How long does DNS change take?
Propagation depends on TTL and caching; typically minutes to hours.
Common mistakes
- MX points to a hostname without an A/AAAA record.
- Using CNAME for MX target (not recommended).
- Wrong priorities or only one server without redundancy.