rcnheating.com

Valid Email Server
Domain Lookup › rcnheating.com

Domain Overview

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

Checked via [email protected] · 2026-03-30 19:02:07 UTC · ↺ Refresh

MX Hostnames

  • rcnheating-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 217.160.0.140 ↩ 217-160-0-140.elastic-ssl.ui-r.com
  • 2001:8d8:100f:f000::200 ↩ 2001-08d8-100f-f000-0000-0000-0000-0200.elastic-ssl.ui-r.com

Mail Server IPs

  • 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
  • 52.101.10.8 ↩ mail-bn1pr04cu00100.inbound.protection.outlook.com
  • 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
  • 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:c92c::4 ↩ mail-dm6pr05cu00404.inbound.protection.outlook.com
  • 2a01:111:f403:c927:: ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:c902::6 ↩ mail-sj0pr21cu00106.inbound.protection.outlook.com

SOA Record

Raw SOA ns1059.ui-dns.com hostmaster.1and1.com 2012043014 28800 7200 604800 300
Primary NS (mname)
ns1059.ui-dns.com
Admin Email (rname)
hostmaster@1and1.com
Serial
2012043014
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1059.ui-dns.biz
ns1059.ui-dns.com
ns1059.ui-dns.de
ns1059.ui-dns.org

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate 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

2 records
  • MS=ms80880447
  • SPFv=spf1 include:spf.protection.outlook.com ~all
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