opinionlab.com

Valid Email Server

Domain Overview

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

Checked via [email protected] · 2026-03-18 21:55:47 UTC · ↺ Refresh

MX Hostnames

  • opinionlab-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 104.17.48.19 (no PTR)
  • 104.17.49.19 (no PTR)

Mail Server IPs

  • 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
  • 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
  • 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com

SOA Record

Raw SOA dilbert.ns.cloudflare.com dns.cloudflare.com 2398836016 10000 2400 604800 1800
Primary NS (mname)
dilbert.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398836016
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

tani.ns.cloudflare.com
dilbert.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:mailgun.org include:amazonses.com include:stspg-customer.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 1 found
selector1._domainkey
✓ Public key: 216 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

6 records
  • SPFv=spf1 include:spf.protection.outlook.com include:mailgun.org include:amazonses.com include:stspg-customer.com ~all
  • MS=ms23738879 include:mailgun.org
  • cbqnk1kx5fw5l9879bjqc283nclj1fng
  • duo_sso_verification=qF3wZK336QdFkQBw2s0Tb1J8kzF118zkxYiSmbMrKD0rcSnx5pPMsn73WQB7BP2s
  • mgverify=22f8b7f24741238e35371778b811df22bcbe31d6375ab12f36f5199ec15f25ce
  • status-page-domain-verification=39vvwj82ykqb
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