southernbuildersyorkcounty.com

Valid Email Server
Domain Lookup › southernbuildersyorkcounty.com

Domain Overview

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

Checked via [email protected] · 2026-03-21 15:27:56 UTC · ↺ Refresh

MX Hostnames

  • southernbuildersyorkcounty-com.mail.protection.outlook.com

MX Priorities

  • southernbuildersyorkcounty-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 50.6.168.180 ↩ server.atierone.org

Mail Server IPs

  • 52.101.41.0 ↩ mail-byapr05cu00400.inbound.protection.outlook.com
  • 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
  • 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
  • 52.101.10.12 ↩ mail-bn1pr21cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
  • 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f907::1 ↩ mail-dm1pr04cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:c946::3 ↩ mail-ch0pr04cu00603.inbound.protection.outlook.com

SOA Record

Raw SOA ns1045.ui-dns.biz hostmaster.1und1.com 2017060111 28800 7200 604800 600
Primary NS (mname)
ns1045.ui-dns.biz
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060111
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns1075.ui-dns.org
ns1031.ui-dns.com
ns1045.ui-dns.biz
ns1057.ui-dns.de

SPF Record

✓ Strict (-all)
v=spf1 +a +mx +ip4:162.241.156.51 +include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

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

1 record
  • SPFv=spf1 +a +mx +ip4:162.241.156.51 +include:spf.protection.outlook.com -all
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