Domain Overview
DNS: ✓ just now
Checker: ✓ just now
subitup.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-21 02:30:37 UTC · ↺ Refresh
MX Hostnames
- subitup-com.mail.protection.outlook.com
MX Priorities
- subitup-com.mail.protection.outlook.com: 0
A / AAAA Records
- 52.143.249.178 (no PTR)
Mail Server IPs
- 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
- 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
- 40.93.192.4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:f802::2 ↩ mail-sj2pr05cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
- 2a01:111:f403:c902::7 ↩ mail-sj0pr02cu00107.inbound.protection.outlook.com
SOA Record
Raw SOA
casey.ns.cloudflare.com dns.cloudflare.com 2404571219 10000 2400 604800 1800
Primary NS (mname)
casey.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2404571219
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
casey.ns.cloudflare.com
paislee.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:19757.spf02.hubspotemail.net include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
10 records- stripe-verification=bb3ac0998c21c2cdf24980a29df06dc2fb28078d84629b76d2e50f980949f66a
- twilio-domain-verification=3935189d0a0c95fb116662cc6fed3848
- SPFv=spf1 include:19757.spf02.hubspotemail.net include:spf.protection.outlook.com -all
- ZOOM_verify_KyeDa98Hfn2k8sTXYJuMpD
- _qfa460vzxisb8s01sjrllogalw4mujq
- apple-domain-verification=HrTLaLcVErwRAJSq
- google-site-verification=LN3HImnRMqLfw1kv8x_2SezWkN-LvaPTL09aK9jK498
- nordpass-domain-verification=590b949a63826b11357b7ed3ee5ac4cc53238ad0a43e10a891c4dd6e5499bfa4
- solarwinds-service0desk-verification=81fe3f97ebf5e2e40f7f47e5e64783e7
- spf1 include:_spf.samanage.com
Full email verification for subitup.com
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