Is cdc.gov a valid email domain?
cdc.gov has working mail routing: 4 MX records pointing, led by primary.us.etp.fireeyegov.com.
It is not a free provider and is not on our disposable list, so addresses here usually belong to a company, school or other organisation.
SPF is published and ends with -all. DMARC is set to reject.
Check an email address at cdc.gov
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MX records
| Priority | Mail server | Resolves to |
|---|---|---|
| 10 | primary.us.etp.fireeyegov.com | 15.200.32.5, 15.200.32.6 |
| 20 | alt1.us.etp.fireeyegov.com | 15.200.32.6, 15.200.32.4 |
| 30 | alt2.us.etp.fireeyegov.com | 15.200.32.4, 15.200.32.5 |
| 40 | alt3.us.etp.fireeyegov.com | 15.200.32.6, 15.200.32.4 |
SPF
Record published
v=spf1 ip4:51.5.72.0/24 ip4:172.81.81.38 ip4:51.4.72.0/24 ip4:51.5.80.0/27 ip4:51.4.80.0/27 ip4:172.81.81.50 ip4:172.81.82.50 ip4:63.123.152.4 ip4:40.92.0.0/15 ip4:172.81.82.79 ip4:172.81.80.64 ip4:172.81.81.39 ip4:172.81.82.87 ip4:172.81.82.88 ip4:155.95.96.50 ip4:155.95.86.50 ip4:23.90.98.102 ip4:124.17.27.36 ip4:149.72.0.0/16 ip4:198.21.0.0/21 ip4:50.31.32.0/19 ip4:167.89.0.0/17 ip4:68.232.140.57 ip4:68.232.140.79 include:_s0.cdc.gov -all
DMARC
Policy: reject
v=DMARC1; p=reject; fo=1; ri=3600; rua=mailto:8idhoybh@ag.us.dmarcian.com,mailto:reports@dmarc.cyber.dhs.gov; ruf=mailto:8idhoybh@fr.us.dmarcian.com;
Disposable?
No, not on our disposable list.
Free provider?
No, not a known free provider.
What this means for your email list
What this means for addresses at this domain
The domain accepts mail, but whether a given person's mailbox exists depends on that organisation. Company domains often have staff who left, role mailboxes like info@ and sales@, and sometimes catch-all rules that accept everything. Verify the individual address before you send.
Sender authentication
cdc.gov has a strict DMARC policy (reject): mail that fails authentication is refused, which protects its brand from spoofing and means anyone sending as cdc.gov must have SPF and DKIM set up correctly.
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Sign up to get a report summary →Frequently asked questions
- Is cdc.gov a valid email domain?
- Yes. cdc.gov publishes 4 MX records and can receive email. Whether a particular mailbox exists is a separate question that only a mailbox check can answer.
- Is cdc.gov a disposable email domain?
- No. cdc.gov is not on our disposable list. The list is updated regularly, and new throwaway domains appear all the time.
- What are the MX records for cdc.gov?
- primary.us.etp.fireeyegov.com (priority 10); alt1.us.etp.fireeyegov.com (priority 20); alt2.us.etp.fireeyegov.com (priority 30); alt3.us.etp.fireeyegov.com (priority 40).
- Does cdc.gov have SPF and DMARC?
- SPF: yes, ending -all. DMARC: yes, policy reject.