Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sterling.us.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-19 21:24:19 UTC · ↺ Refresh
MX Hostnames
- us1-smtp-mx1.titanhq.com
- us1-smtp-mx2.titanhq.com
MX Priorities
- us1-smtp-mx1.titanhq.com: 1
- us1-smtp-mx2.titanhq.com: 1
A / AAAA Records
- 100.24.208.97 ↩ staticip2.multiscreensite.com
- 35.172.94.1 ↩ staticip.multiscreensite.com
Mail Server IPs
- 18.218.73.72 ↩ us1-smtp-mx1.titanhq.com
- 18.225.12.231 ↩ us1-smtp-mx1.titanhq.com
- 18.116.252.179 ↩ us1-smtp-mx1.titanhq.com
SOA Record
Raw SOA
clay.ns.cloudflare.com dns.cloudflare.com 2397701168 10000 2400 604800 1800
Primary NS (mname)
clay.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397701168
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
clay.ns.cloudflare.com
ulla.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;sp=reject;adkim=r;aspf=r;pct=100;fo=1;rf=afrf;ri=86400;rua=mailto:[email protected];ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 1 found
selector1._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- SPFv=spf1 include:spf.protection.outlook.com -all
- MS=ms88731281
- google-site-verification=Z_e3yn0cMPz4c7yk0tKDurgoYtbzwnZpRgsYCiZceBM
Full email verification for sterling.us.com
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