Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
3s-engineering.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 16:27:31 UTC · ↺ Refresh
MX Hostnames
- 3s-engineering-com.inbound.emailservice.cc
- 3s-engineering-com.inbound.emailservice.co
- 3s-engineering-com.inbound.emailservice.io
MX Priorities
- 3s-engineering-com.inbound.emailservice.cc: 20
- 3s-engineering-com.inbound.emailservice.io: 10
- 3s-engineering-com.inbound.emailservice.co: 30
A / AAAA Records
- 35.209.152.131 ↩ 131.152.209.35.bc.googleusercontent.com
Mail Server IPs
- 52.44.33.109 ↩ ec2-52-44-33-109.compute-1.amazonaws.com
- 54.211.15.143 ↩ ec2-54-211-15-143.compute-1.amazonaws.com
- 107.21.241.201 ↩ ec2-107-21-241-201.compute-1.amazonaws.com
SOA Record
Raw SOA
dns1.name-services.com info.name-services.com 1758837830 172800 900 1814400 300
Primary NS (mname)
dns1.name-services.com
Admin Email (rname)
info@name-services.com
Serial
1758837830
Refresh
172800s
Retry
900s
Expire
1814400s
Minimum TTL
300s
Nameservers (NS)
dns3.name-services.com
dns5.name-services.com
dns1.name-services.com
dns2.name-services.com
dns4.name-services.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:66.210.31.14 include:spf.us.emailservice.io include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=15; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 15% of failing messages only
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ 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- apple-domain-verification=NN38Uw0sOrFctcxO
- MS=ms79107448
- SPFv=spf1 ip4:66.210.31.14 include:spf.us.emailservice.io include:spf.protection.outlook.com -all
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