Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cboe.com
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 20:39:57 UTC · ↺ Refresh
MX Hostnames
- mxb-00257201.gslb.pphosted.com
- mxa-00257201.gslb.pphosted.com
MX Priorities
- mxb-00257201.gslb.pphosted.com: 10
- mxa-00257201.gslb.pphosted.com: 10
A / AAAA Records
- 104.19.184.30 (no PTR)
- 104.19.183.30 (no PTR)
- 2606:4700::6813:b81e (no PTR)
- 2606:4700::6813:b71e (no PTR)
Mail Server IPs
- 208.84.65.104 ↩ mx0a-00257201.pphosted.com
SOA Record
Raw SOA
jessica.ns.cloudflare.com dns.cloudflare.com 2399887413 10000 2400 604800 1800
Primary NS (mname)
jessica.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399887413
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
jessica.ns.cloudflare.com
kevin.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
dkim._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
18 records- cisco-ci-domain-verification=5d2537701354a1cc3bfd3e40ee871149f39bc8c13261255405db36a35cf1d3fd
- SPFv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com -all
- sending_domain77532=d9693b2b5439f2d20b43322008546a895c443cb918b0206a796a0d11877fb1d6
- sending_domain123862=ca9bf8ee55197f72c1ee4be86e60cfb5633e2586f1582615b08fd9fcd5a526e9
- axios-domain-verification-2eerwv=abzB10gH53UGt5dIAQghDENsX
- wiz-domain-verification=8f3a15975353d0fd2b30430a5dd5cff62f94ebe691f83966fb0d056a8f50a1e9
- atlassian-domain-verification=wJiCMC7edQGUVuOCxHJqUkjryJHPWfIeG80Aaw7hJwfuJjIOH5sipXJI6lNJy4aQ
- tF+FQKs+86XtAywB2XxUUIA3GOhw3JvD8uKM69rPbH35UcE8gHhlZi694c/qA2d2negh1z6TG/NJCi97m89FFw==
- vmware-cloud-verification-5280b90c-c2f1-4efc-9e02-0411e309a097
- google-site-verification=oVumDQ9fqCS-TXxqkd2JD0dVWOjzq3wRe_kG7E_v208
- MS=ms15948989
- google-gws-recovery-domain-verification=54522828
- atlassian-sending-domain-verification=39fbd50b-d164-4ad9-9647-1e15df7a1ca3
- sending_domain1005862=d00aae71fd1e8c911954e25b7ddf51678eb9fb37325e50dc8d5d5db30501b7c9
- 4M/8hg+kwpc+HaNi7kIjcKBbaM/efXNXe8G3CdrTGxzwZ7ac5iBa9Jd3wNOGgFUn4+r88iCVaxTO63c+xOZTfw==
- google-site-verification=cMtwWYLF_njJIB2DcckeYRh8nULKZyWT4l6HqR8o_DE
- sending_domain1016812=1037b4101edadb3aab7e2eaff13ea4ebfb304cefa6ac44f1a9901cfd7fa0eef3
- apple-domain-verification=HWEtEEyx40iP8moJ
Full email verification for cboe.com
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