Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
kelvin.cool
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-04 05:49:59 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-1.mimecast.com: 10
- us-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 172.67.181.31 (no PTR)
- 104.21.67.208 (no PTR)
- 2606:4700:3032::ac43:b51f (no PTR)
- 2606:4700:3035::6815:43d0 (no PTR)
Mail Server IPs
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
carter.ns.cloudflare.com dns.cloudflare.com 2400297314 10000 2400 604800 1800
Primary NS (mname)
carter.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400297314
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
carter.ns.cloudflare.com
zara.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_u.kelvin.cool._spf.smart.ondmarc.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; sp=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=r; aspf=r; fo=1; rf=afrf; ri=3600
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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
10 records- SPFv=spf1 include:_u.kelvin.cool._spf.smart.ondmarc.com ~all
- 0386BA77D7
- MS=ms92378530
- apple-domain-verification=uLvRoHywdv26y2m6
- autodesk-domain-verification=Id1HhKO88Vp5Nx_0YINE
- domain-verification 93d3746d-8579-4085-8282-37f2977953c7
- flywheel=vczmut7sv9
- knowbe4-site-verification=7ebed47cb223feed74c458fd308ca2c4
- pardot1094693=633827bda6da822657f404f0042449abf3fcb6da5aa0e9c40266e440f6d640a5
- sending_domain1094693=df873b12011c676c141f5523af9ef3a7f37fcfcd1a8e7659e12f93852c95aba4
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