Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
petro49.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 15:00:11 UTC · ↺ Refresh
MX Hostnames
- mx-cluster-usa03.hornetsecurity.com
- mx-cluster-usa04.hornetsecurity.com
- mx-cluster-usa02.hornetsecurity.com
- mx-cluster-usa01.hornetsecurity.com
MX Priorities
- mx-cluster-usa03.hornetsecurity.com: 30
- mx-cluster-usa02.hornetsecurity.com: 20
- mx-cluster-usa01.hornetsecurity.com: 10
- mx-cluster-usa04.hornetsecurity.com: 40
A / AAAA Records
- 66.128.61.3 (no PTR)
Mail Server IPs
- 173.45.18.100 ↩ hsmx01-hz5.hornetsecurity.com
SOA Record
Raw SOA
ns77.worldnic.com namehost.worldnic.com 125091220 10800 3600 604800 3600
Primary NS (mname)
ns77.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125091220
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns78.worldnic.com
ns77.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.hornetsecurity.com include:spf.smtp2go.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
9 records- SPFv=spf1 include:spf.protection.outlook.com include:spf.hornetsecurity.com include:spf.smtp2go.com -all
- MS=ms40349019
- MS=ms79664525
- sophos-domain-verification=d4263c4b66d8b12dd57a0e037e63de2faa2f908065d926052986ae31afd81d2c
- sophos-domain-verification=b4534e0531d45859a0a465bdd5ffbda2c7455d39
- ppe-79a4940609178a46c02e
- m7t62u203prkiqseqitbhof2v2
- vsdn38dqq1d2o58kbh4jg4jslm
- MS=ms10640476
Full email verification for petro49.com
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