landlineco.com

Valid Email Server
Domain Lookup › landlineco.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
landlineco.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-20 23:44:42 UTC · ↺ Refresh

MX Hostnames

  • mxb.mailgun.org
  • landlineco-com.mail.protection.outlook.com
  • mxa.mailgun.org

MX Priorities

  • landlineco-com.mail.protection.outlook.com: 0
  • mxa.mailgun.org: 10
  • mxb.mailgun.org: 10

A / AAAA Records

  • 216.150.1.1

Mail Server IPs

  • 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
  • 52.101.194.13 ↩ mail-ch0pr04cu00605.inbound.protection.outlook.com
  • 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
  • 52.101.9.17 (no PTR)
  • 2a01:111:f403:f908::2 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:c946::7 ↩ mail-ch5pr02cu00307.inbound.protection.outlook.com
  • 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
  • 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
  • 34.160.13.42 ↩ 42.13.160.34.bc.googleusercontent.com
  • 34.160.63.108 ↩ 108.63.160.34.bc.googleusercontent.com

SOA Record

Raw SOA ns-cloud-a1.googledomains.com cloud-dns-hostmaster.google.com 46 21600 3600 259200 300
Primary NS (mname)
ns-cloud-a1.googledomains.com
Admin Email (rname)
cloud-dns-hostmaster@google.com
Serial
46
Refresh
21600s
Retry
3600s
Expire
259200s
Minimum TTL
300s

Nameservers (NS)

ns-cloud-a3.googledomains.com
ns-cloud-a4.googledomains.com
ns-cloud-a2.googledomains.com
ns-cloud-a1.googledomains.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:_spf.google.com include:mail.zendesk.com include:mailgun.org ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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

4 records
  • MS=ms42080210
  • MS=ms74454823
  • SPFv=spf1 include:spf.protection.outlook.com include:_spf.google.com include:mail.zendesk.com include:mailgun.org ~all
  • apple-domain-verification=FwyWazY5yXpNut55
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