doublepositive.com

Valid Email Server
Domain Lookup › doublepositive.com

Domain Overview

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

Checked via [email protected] · 2026-03-19 02:14:00 UTC · ↺ Refresh

MX Hostnames

  • doublepositive-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 141.193.213.21 (no PTR)
  • 141.193.213.20 (no PTR)

Mail Server IPs

  • 52.101.41.21 ↩ mail-sj2pr05cu00305.inbound.protection.outlook.com
  • 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
  • 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
  • 52.101.40.24 ↩ mail-cy5pr05cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f902::2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:c946::7 ↩ mail-ch5pr02cu00307.inbound.protection.outlook.com
  • 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com
  • 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com

SOA Record

Raw SOA ns-633.awsdns-15.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-633.awsdns-15.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-1733.awsdns-24.co.uk
ns-485.awsdns-60.com
ns-633.awsdns-15.net
ns-1391.awsdns-45.org

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:amazonses.com include:spf-00680a01.pphosted.com include:usb._netblocks.mimecast.com include:spfa.cpmails.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

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

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

3 records
  • MS=ms81549636
  • SPFv=spf1 include:spf.protection.outlook.com include:amazonses.com include:spf-00680a01.pphosted.com include:usb._netblocks.mimecast.com include:spfa.cpmails.com ~all
  • 0ed1fe018a7b0b074056594af68591517e16b692e2
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