Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
masterbuilt.com
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 13:40:16 UTC · ↺ Refresh
MX Hostnames
- mxb-0051cc01.gslb.pphosted.com
- mxa-0051cc01.gslb.pphosted.com
MX Priorities
- mxb-0051cc01.gslb.pphosted.com: 10
- mxa-0051cc01.gslb.pphosted.com: 10
A / AAAA Records
- 23.227.38.32 ↩ myshopify.com
Mail Server IPs
- 148.163.135.13 ↩ mx0a-0051cc01.pphosted.com
- 148.163.139.33 ↩ mx0b-0051cc01.pphosted.com
SOA Record
Raw SOA
dns1.comlaude-dns.com dnstech.comlaude.com 1738068574 43200 7200 1209600 3600
Primary NS (mname)
dns1.comlaude-dns.com
Admin Email (rname)
dnstech@comlaude.com
Serial
1738068574
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
dns2.comlaude-dns.net
dns3.comlaude-dns.co.uk
dns4.comlaude-dns.eu
dns1.comlaude-dns.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ip4:52.144.52.4 ip4:149.72.39.215 ip4:149.72.182.166 ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; adkim=r; aspf=r; rua=mailto:[email protected],mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]; fo=0:1:d:s
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected],mailto:[email protected]
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
12 records- knowbe4-site-verification=bbc84b90a6d4a8851246a21945fb2485
- SPFv=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ip4:52.144.52.4 ip4:149.72.39.215 ip4:149.72.182.166 ~all
- Blm0fb9InHdszhGBnmTBz6LDhdhRf9iLJh9/DDnBG+ZE1vCypZsMMyZR0JB4TIoMJ5m8F3aA3po07hH6V1BPvQ==
- MS=ms43942340
- MS=ms86049764
- facebook-domain-verification=jgfcnac289si2j8nqxrr2f8tii1zxu
- google-site-verification=5_EXfpoFW1xEG_5oW4IKI0xTUQBCnL86aPv4EmbXu8s
- google-site-verification=BDzwEGGSwgei95XCc9isMa6O3jZXqpO-qHaN7hD31lI
- google-site-verification=HaxAWvSGXf4bBnzQgyk4FmiShJvothMyqJQJ4SyRaZM
- google-site-verification=SPtl9IwmckyzcU3VBiYStFubMTc-aeaDwg6HrnfOKaA
- google-site-verification=aZBNTi2HzOzAjIyFZ57wodACIgvcUmblR8PJfb7PEeo
- klaviyo-site-verification=KRvQXj
Full email verification for masterbuilt.com
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