Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dulsco.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 20:11:21 UTC · ↺ Refresh
MX Hostnames
- dulsco-com.mail.protection.outlook.com
MX Priorities
- dulsco-com.mail.protection.outlook.com: 0
A / AAAA Records
- 76.76.21.21 (no PTR)
Mail Server IPs
- 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
SOA Record
Raw SOA
ns45.worldnic.com namehost.worldnic.com 126032501 10800 3600 604800 3600
Primary NS (mname)
ns45.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126032501
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns46.worldnic.com
ns45.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf-uae.emailsignatures365.com include:spf_c.oraclecloud.com include:oci.bigmachines.com ip4:138.1.36.217 ip4:147.154.18.119 -all
📊 DNS lookups: 4/10
✓ 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
✓ 2 found
selector1._domainkey
selector2._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
10 records- SPFv=spf1 include:spf.protection.outlook.com include:spf-uae.emailsignatures365.com include:spf_c.oraclecloud.com include:oci.bigmachines.com ip4:138.1.36.217 ip4:147.154.18.119 -all
- perplexity-ai-domain-verification-wgeehd=JSfMHvye0LCtf6tW3XYsZwkqh
- 0ed1fe018a8e5e0a025f1241cd84accc92a50194b5
- DOUOL49037
- loom-site-verification=1935579d60c6434d882ad8fe2d7b51f2
- MS=ms64418478
- LiNcrVMCF1TTzyVX/zVuA9biJ244NCp8SCDwN+bJeTsOj43BNCHgDtlayBcMvyfi0hyY8pWtsW4fimxE/nSZJA==
- google-site-verification=jrny2mA2dGQgfZjuOSQ4BXSQOXmh_5dJaqlJTf0hCjQ
- apple-domain-verification=CceXGDcAXq4tJ07W
- google-site-verification=jBQQFJAilBLq8LRkph_IwcdUXo8PMVW6JjbdYQML4UA
Full email verification for dulsco.com
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