penncollision.com

Valid Email Server
Domain Lookup › penncollision.com

Domain Overview

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

Checked via [email protected] · 2026-03-20 01:01:43 UTC · ↺ Refresh

MX Hostnames

  • penncollision-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 74.208.236.70 ↩ 74-208-236-70.elastic-ssl.ui-r.com
  • 2607:f1c0:100f:f000::245 ↩ 2607-f1c0-100f-f000-0000-0000-0000-0245.elastic-ssl.ui-r.com

Mail Server IPs

  • 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
  • 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
  • 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
  • 52.101.10.6 ↩ mail-bn1pr21cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:c92c::2 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:c931::1 ↩ mail-sa9pr03cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:c801::1 ↩ mail-sn1pr0501cu00101.inbound.protection.outlook.com

SOA Record

Raw SOA ns1025.ui-dns.biz hostmaster.1and1.com 2017072912 28800 7200 604800 300
Primary NS (mname)
ns1025.ui-dns.biz
Admin Email (rname)
hostmaster@1and1.com
Serial
2017072912
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1025.ui-dns.de
ns1025.ui-dns.com
ns1025.ui-dns.biz
ns1025.ui-dns.org

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

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

2 records
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • MS=ms25817113
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