cobblestoneenergy.com

Valid Email Server
Domain Lookup › cobblestoneenergy.com

Domain Overview

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

Checked via [email protected] · 2026-03-21 21:07:55 UTC · ↺ Refresh

MX Hostnames

  • cobblestoneenergy-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 162.159.136.54 (no PTR)
  • 162.159.137.54 (no PTR)

Mail Server IPs

  • 52.101.89.2 ↩ mail-lo3p265cu00302.inbound.protection.outlook.com
  • 52.101.89.0 ↩ mail-lo2p265cu02300.inbound.protection.outlook.com
  • 52.101.89.1 ↩ mail-lo0p265cu00201.inbound.protection.outlook.com
  • 52.101.99.2 ↩ mail-cwxp265cu00502.inbound.protection.outlook.com
  • 2a01:111:f403:ca1a::1 ↩ mail-cwxp265cu00601.inbound.protection.outlook.com
  • 2a01:111:f403:ca0b:: ↩ mail-lo2p265cu02300.inbound.protection.outlook.com
  • 2a01:111:f403:ca1a:: ↩ mail-cwxp265cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca0b::1 ↩ mail-lo3p265cu00301.inbound.protection.outlook.com

SOA Record

Raw SOA dns1.uk2.net hostmaster.uk2.net 0 86400 7200 3600000 86400
Primary NS (mname)
dns1.uk2.net
Admin Email (rname)
hostmaster@uk2.net
Serial
0
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
86400s

Nameservers (NS)

dns3.uk2.net
dns1.uk2.net
dns2.uk2.net

SPF Record

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

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 5 found
selector1._domainkey
selector2._domainkey
mail._domainkey
s1._domainkey
s2._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

7 records
  • atlassian-domain-verification=jxZAaS/ivy0xaN5LvFAyLneARRDpqVabpopG7EyrfPGGl5rBQ17swwlU1pDC06FE
  • SPFv=spf1 include:spf.protection.outlook.com include:mg-spf.greenhouse.io -all
  • brevo-code:a9983ebe465c053f9320379145bcfd9b
  • apple-domain-verification=rUpZzV6RZIErt06q
  • google-site-verification=YcrMPCIKrpUNHT0gMWq9krPv9S6ylyrAgpLfxFjP7Fo
  • MS=ms52429811
  • brevo-code:a8824fb9e48578879d2e32a3ac0105ae
Full email verification for cobblestoneenergy.com

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