hdrelay.com

Valid Email Server

Domain Overview

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

Checked via [email protected] · 2026-03-23 15:16:32 UTC · ↺ Refresh

MX Hostnames

  • hdrelay-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 44.255.238.162 ↩ ec2-44-255-238-162.us-west-2.compute.amazonaws.com
  • 44.244.192.164 ↩ ec2-44-244-192-164.us-west-2.compute.amazonaws.com
  • 35.162.53.59
  • 184.34.21.117

Mail Server IPs

  • 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
  • 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
  • 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
  • 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f902::2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com

SOA Record

Raw SOA ns-1887.awsdns-43.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1887.awsdns-43.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-750.awsdns-29.net
ns-1479.awsdns-56.org
ns-1887.awsdns-43.co.uk
ns-55.awsdns-06.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:amazonses.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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

7 records
  • _amazonses.hdrelay.com=mci4cC/6YLbas64OqeuiMT32oTa1ZppOG1DSrBfi0/s=
  • [email protected]=v=DMARC1; p=none;
  • hdrelay.com=amazonses:mci4cC/6YLbas64OqeuiMT32oTa1ZppOG1DSrBfi0/s=
  • ohq58atrvoj28m3gsc5pn45ab0
  • openai-domain-verification=dv-XXspXRMjG6yIGDxfF3UqRRO0
  • SPFv=spf1 include:spf.protection.outlook.com include:amazonses.com -all
  • vvtgkfvab5mofv74snfc8s54ea
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