Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
christopherheights.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 16:48:00 UTC · ↺ Refresh
MX Hostnames
- christopherheights-com.p20.mxthunder.net
- christopherheights-com.p10.mxthunder.com
- christopherheights-com.p40.mxthunder.net
- christopherheights-com.p30.mxthunder.net
MX Priorities
- christopherheights-com.p10.mxthunder.com: 10
- christopherheights-com.p20.mxthunder.net: 20
- christopherheights-com.p30.mxthunder.net: 30
- christopherheights-com.p40.mxthunder.net: 40
A / AAAA Records
- 52.85.31.80 ↩ server-52-85-31-80.jfk50.r.cloudfront.net
- 52.85.31.117 ↩ server-52-85-31-117.jfk50.r.cloudfront.net
- 52.85.31.63 ↩ server-52-85-31-63.jfk50.r.cloudfront.net
- 52.85.31.129 ↩ server-52-85-31-129.jfk50.r.cloudfront.net
Mail Server IPs
- 209.41.68.190 ↩ bolt102b.mxthunder.net
- 108.166.161.244 ↩ bolt102a.mxthunder.net
SOA Record
Raw SOA
ns-547.awsdns-04.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-547.awsdns-04.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-338.awsdns-42.com
ns-547.awsdns-04.net
ns-1361.awsdns-42.org
ns-1691.awsdns-19.co.uk
SPF Record
✓ Strict (-all)
v=spf1 a mx 824552 include:spf.protection.outlook.com include:one.zoho.com include:zcsend.net -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
1 record- SPFv=spf1 a mx 824552 include:spf.protection.outlook.com include:one.zoho.com include:zcsend.net -all
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