jeffersonsheard.com

Valid Email Server
Domain Lookup › jeffersonsheard.com
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
jeffersonsheard.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-10-29 23:21:59 UTC · ↺ Refresh

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MX Hostnames

  • jeffersonsheard-com.mail.protection.outlook.com

MX Priorities

  • jeffersonsheard-com.mail.protection.outlook.com: 10

A / AAAA Records

  • 79.170.40.4 ↩ webforwards.extendcp.co.uk

Mail Server IPs

  • 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 52.101.103.36 ↩ mail-miypr05cu00104.inbound.protection.outlook.com
  • 52.101.103.162 ↩ mail-miypr03cu00202.inbound.protection.outlook.com
  • 52.101.185.21 ↩ mail-zrxpr05cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:ca21::8 ↩ mail-matpr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca21::e ↩ mail-matpr04cu00306.inbound.protection.outlook.com
  • 2a01:111:f403:c967::c ↩ mail-cpjpr05cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca21::c ↩ mail-matpr04cu00204.inbound.protection.outlook.com

SOA Record

Raw SOA ns.mainnameserver.com hostmaster.mainnameserver.com 2026080443 10800 600 2419200 3600
Primary NS (mname)
ns.mainnameserver.com
Admin Email (rname)
hostmaster@mainnameserver.com
Serial
2026080443
Refresh
10800s
Retry
600s
Expire
2419200s
Minimum TTL
3600s

Nameservers (NS)

ns2.mainnameserver.com
ns.mainnameserver.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf-uk.emailsignatures365.com ip4:138.248.207.18 ip4:103.141.24.210 ip4:81.130.213.63 ip4:193.28.36.99 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=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 detected

No 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

4 records
  • SPFv=spf1 include:spf.protection.outlook.com include:spf-uk.emailsignatures365.com ip4:138.248.207.18 ip4:103.141.24.210 ip4:81.130.213.63 ip4:193.28.36.99 -all
  • MS=ms36198339
  • apple-domain-verification=Vw9SnE95kialG0E2
  • MS=ms33892438
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