Is splunk.com a valid email domain?
splunk.com can receive email. It publishes 3 mail servers, and the first choice is alln-mx-01.cisco.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.
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MX records
| Priority | Mail server | Resolves to |
|---|---|---|
| 10 | alln-mx-01.cisco.com | 173.37.147.230, 2001:420:1201:6::ad25:93e6 |
| 20 | rcdn-mx-01.cisco.com | 72.163.7.166, 2001:420:1101:7::48a3:166 |
| 30 | aer-mx-01.cisco.com | 173.38.212.150, 2001:420:4621::ad26:d496 |
SPF
Record published
v=spf1 ip4:104.143.85.100 ip4:104.193.137.209 ip4:104.193.137.4 ip4:104.193.137.41 ip4:192.41.71.17 ip4:199.119.121.165 ip4:204.107.141.23 ip4:204.107.141.240 ip4:216.24.147.140 ip4:68.232.128.201 ip4:68.232.147.33 ip4:68.232.149.37 ip4:97.107.118.214 ip4:50.57.196.251 ip4:162.242.190.82 ip4:72.3.137.171 ip4:92.52.102.162 ip4:63.236.27.141 ip4:67.202.198.229 ip4:63.241.4.85 ip4:67.202.198.237 ip4:5.61.117.0/24 ip4:174.143.181.180 include:sendgrid.net include:mktomail.com include:_spf.salesforce.com include:amazonses.com include:us.khoros-mail.com include:eu.khoros-mail.com include:_spf.qualtrics.com include:_netblocks.xactlycorp.com ~all
DMARC
Policy: reject
v=DMARC1; p=reject; sp=reject; rua=mailto:ssg-collab-valimail@splunk.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
Mail routing for splunk.com is healthy, so the domain is not the risk. The risk is the mailbox: outdated contacts, shared inboxes and catch-all servers. A mailbox-level check tells you which addresses are safe to send to.
Sender authentication
splunk.com has a strict DMARC policy (reject): mail that fails authentication is refused, which protects its brand from spoofing and means anyone sending as splunk.com must have SPF and DKIM set up correctly.
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Sign up to get a report summary →Frequently asked questions
- Is splunk.com a valid email domain?
- Yes. splunk.com publishes 3 MX records and can receive email. Whether a particular mailbox exists is a separate question that only a mailbox check can answer.
- Is splunk.com a disposable email domain?
- No. splunk.com 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 splunk.com?
- alln-mx-01.cisco.com (priority 10); rcdn-mx-01.cisco.com (priority 20); aer-mx-01.cisco.com (priority 30).
- Does splunk.com have SPF and DMARC?
- SPF: yes, ending ~all. DMARC: yes, policy reject.