Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
lumosfiber.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 03:31:18 UTC · ↺ Refresh
MX Hostnames
- lumosfiber-com.mail.protection.outlook.com
MX Priorities
- lumosfiber-com.mail.protection.outlook.com: 0
A / AAAA Records
- 23.185.0.4 (no PTR)
- 2620:12a:8000::4 (no PTR)
- 2620:12a:8001::4
Mail Server IPs
- 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 52.101.11.15 ↩ mail-sa9pr02cu00207.inbound.protection.outlook.com
- 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
- 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
- 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c801::1 ↩ mail-sn1pr0501cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
SOA Record
Raw SOA
dns1.nstel.com empty.empty 884 3600 600 1209600 3600
Primary NS (mname)
dns1.nstel.com
Admin Email (rname)
empty@empty
Serial
884
Refresh
3600s
Retry
600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
dns1-eip.nstel.com
dns2-eip.nstel.com
dns1.nstel.com
dns2.nstel.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:_spf.salesforce.com include:emailus.freshservice.com include:spf.US.exclaimer.net include:_spf.psm.knowbe4.com include:spf.extole.io ip4:216.237.216.2 ip4:216.237.227.0/26 ip4:139.131.126.0/24 ip4:216.81.173.129 ip4:139.131.76.0/24 ip4:23.21.109.197 ip4:23.21.109.212 ip4:147.160.167.0/26 ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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
11 records- cisco-ci-domain-verification=46a9759d6c4d1ace8e67433cdd677d5a764659845f620cc761e0b22ac9a0c294
- SPFv=spf1 include:spf.protection.outlook.com include:_spf.salesforce.com include:emailus.freshservice.com include:spf.US.exclaimer.net include:_spf.psm.knowbe4.com include:spf.extole.io ip4:216.237.216.2 ip4:216.237.227.0/26 ip4:139.131.126.0/24 ip4:216.81.173.129 ip4:139.131.76.0/24 ip4:23.21.109.197 ip4:23.21.109.212 ip4:147.160.167.0/26 ~all
- _rrwsol78h8qwdk69mbsscu5rct9i0fe
- autodesk-domain-verification=45gBhE4M-JhsAYoTo02I
- logmein-verification-code=208cba1e-9292-4f99-bf15-c8a91ad91cd8
- smartsheet-site-validation=Pft2oZgxCVYDQVvl_K_cDlfJ_678-4Kt
- _9t6q3i8szn3as83034g3c39238yjiax
- adobe-idp-site-verification=ef47c1015914f8c6a06687efdf0808cb0eefd0ddfb3a104e6109367d9da6f3ed
- MS=ms33169885
- atlassian-domain-verification=3Jk/SlvDsuLG88Leh8DPJLrlIox0aMm8N44MNUc0FLvSY4ofwWHmE2wq8u20wq1u
- knowbe4-site-verification=fedab5a0779785685697fa8f3c4b257a
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