alexanderkoonce.com

Valid Email Server
Domain Lookup › alexanderkoonce.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
alexanderkoonce.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-23 23:14:35 UTC · ↺ Refresh

MX Hostnames

  • alexanderkoonce-com.p20.mxthunder.net
  • alexanderkoonce-com.p30.mxthunder.net
  • alexanderkoonce-com.p40.mxthunder.net
  • alexanderkoonce-com.p10.mxthunder.com

MX Priorities

  • alexanderkoonce-com.p40.mxthunder.net: 40
  • alexanderkoonce-com.p10.mxthunder.com: 10
  • alexanderkoonce-com.p20.mxthunder.net: 20
  • alexanderkoonce-com.p30.mxthunder.net: 30

A / AAAA Records

  • 104.21.75.151 (no PTR)
  • 172.67.177.230 (no PTR)
  • 2606:4700:3032::6815:4b97 (no PTR)
  • 2606:4700:3035::ac43:b1e6 (no PTR)

Mail Server IPs

  • 209.41.68.188 ↩ bolt100b.mxthunder.net
  • 108.166.161.242 ↩ bolt100a.mxthunder.net

SOA Record

Raw SOA sean.ns.cloudflare.com dns.cloudflare.com 2396666101 10000 2400 604800 1800
Primary NS (mname)
sean.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2396666101
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

vera.ns.cloudflare.com
sean.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 mx a a:webmail.cfwebmasters.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

2 records
  • SPFv=spf1 mx a a:webmail.cfwebmasters.com -all
  • google-site-verification=hrPPC-9utOERWjYspQeumh9c79IfijHjIxRv4vtzYU8
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