Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tristarrepair.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 22:42:50 UTC · ↺ Refresh
MX Hostnames
- mx-02-us-east-2.prod.hydra.sophos.com
- mx-01-us-east-2.prod.hydra.sophos.com
MX Priorities
- mx-02-us-east-2.prod.hydra.sophos.com: 10
- mx-01-us-east-2.prod.hydra.sophos.com: 0
A / AAAA Records
- 64.91.248.166 ↩ server1.authoritysolutions.com
Mail Server IPs
- 3.135.48.136 ↩ ec2-3-135-48-136.us-east-2.compute.amazonaws.com
- 18.218.105.173 ↩ ec2-18-218-105-173.us-east-2.compute.amazonaws.com
- 18.189.107.171 ↩ ec2-18-189-107-171.us-east-2.compute.amazonaws.com
SOA Record
Raw SOA
ns19.worldnic.com namehost.worldnic.com 125081415 10800 3600 604800 3600
Primary NS (mname)
ns19.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125081415
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns19.worldnic.com
ns20.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf_useast2.prod.hydra.sophos.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
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
3 records- sophos-domain-verification=a97f94b1f87a0b8bc6fe8172265234a11bf16da2
- google-site-verification=v7PTf9r2J_1zaNQzfdcX7drsSM0WcBEdBQBKSMscDNQ
- SPFv=spf1 include:spf.protection.outlook.com include:_spf_useast2.prod.hydra.sophos.com -all
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