Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nexthermal.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 14:52:49 UTC · ↺ Refresh
MX Hostnames
- nexthermal-com.mail.protection.outlook.com
MX Priorities
- nexthermal-com.mail.protection.outlook.com: 20
A / AAAA Records
- 141.193.213.11 (no PTR)
Mail Server IPs
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
- 52.101.50.1 ↩ mail-co1pr05cu00401.inbound.protection.outlook.com
- 52.101.9.5 ↩ mail-mn2pr04cu00205.inbound.protection.outlook.com
- 2a01:111:f403:f902:: ↩ mail-bl2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c801::1 ↩ mail-sn1pr0501cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c927:: ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
SOA Record
Raw SOA
ns45.worldnic.com namehost.worldnic.com 126031015 10800 3600 604800 3600
Primary NS (mname)
ns45.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126031015
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns45.worldnic.com
ns46.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 include:sendersrv.com include:_spf.psm.knowbe4.com include:_spf.salesforce.com include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]; sp=reject; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: reject
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
8 records- pardot968483=e2bb067936f6f9d80272f135cefd1ca2c79aed6d889466b8c8ee011d6b5eb96b
- odpdoa43rmle2phl69ebm51unm
- sending_domain968483=650efee3d5aeaab4c958e611a8a910d433eff5ef78775c96cedf0df7e7ae1ec7
- google-site-verification=d6jPvScCQk1E5Oe6aDZ1C3wtox2HknO7WqjFgNXHX9E
- SPFv=spf1 include:sendersrv.com include:_spf.psm.knowbe4.com include:_spf.salesforce.com include:spf.protection.outlook.com -all
- _globalsign-domain-verification=VIotCEh-0gTSO2aARbBwI2kU-u6MvbD2Y_yDpQsOhy
- 00d5e000003u90geac
- duo_sso_verification=48hpsRL2GwUu3V5CL9Yb0yWOJw8tTkvHckhggNIht3SrBzBQaiEGWpQS6LvmWZai
Full email verification for nexthermal.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits