Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
quantumbrt.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 17:12:47 UTC · ↺ Refresh
MX Hostnames
- quantumbrt.in.tmes.trendmicro.com
MX Priorities
- quantumbrt.in.tmes.trendmicro.com: 1
A / AAAA Records
- 191.252.83.197 (no PTR)
Mail Server IPs
- 18.208.22.79 ↩ in.tmes.trendmicro.com
- 18.208.22.80 ↩ in.tmes.trendmicro.com
- 18.208.22.77 ↩ in.tmes.trendmicro.com
- 18.208.22.78 ↩ in.tmes.trendmicro.com
SOA Record
Raw SOA
ns1.locaweb.com.br hostmaster.locaweb.com.br 2022031001 3600 600 1209600 3600
Primary NS (mname)
ns1.locaweb.com.br
Admin Email (rname)
hostmaster@locaweb.com.br
Serial
2022031001
Refresh
3600s
Retry
600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns3.locaweb.com.br
ns1.locaweb.com.br
ns2.locaweb.com.br
SPF Record
✓ Strict (-all)
v=spf1 mx include:spf.tmes.trendmicro.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; fo=1; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- _globalsign-domain-verification=YqZ9t97GIy96em4O9DEWEGsH8dWrdJeMHA12TUugfI
- SPFv=spf1 mx include:spf.tmes.trendmicro.com -all
Full email verification for quantumbrt.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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