cogc.com

Valid Email Server
Domain Lookup › cogc.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
cogc.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-21 01:31:07 UTC · ↺ Refresh

MX Hostnames

  • cogc-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
  • 52.101.9.2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
  • 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
  • 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f907::1 ↩ mail-dm1pr04cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:c902::2 ↩ mail-sj0pr03cu01602.inbound.protection.outlook.com
  • 2a01:111:f403:c902::16 ↩ mail-byapr04cu00306.inbound.protection.outlook.com
  • 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com

SOA Record

Raw SOA xbru.br.ns.els-gms.att.net rm-hostmaster.ems.att.com 110 86400 10000 604800 86400
Primary NS (mname)
xbru.br.ns.els-gms.att.net
Admin Email (rname)
rm-hostmaster@ems.att.com
Serial
110
Refresh
86400s
Retry
10000s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

dmtu.mt.ns.els-gms.att.net
dbru.br.ns.els-gms.att.net

SPF Record

✓ Strict (-all)
v=spf1 ip4:209.64.125.126 ip4:209.64.125.118 ip4:159.100.171.64 ip4:148.59.100.16/28 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._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

5 records
  • SPFv=spf1 ip4:209.64.125.126 ip4:209.64.125.118 ip4:159.100.171.64 ip4:148.59.100.16/28 include:spf.protection.outlook.com -all
  • lerv7VXiegjyMiLSJWsYatwYqYjS0Hu19tAOb4a0LIvVZqddWv0b7Okqwgp36I/65uD3fgCTeCktw0vZX1mo3Q==
  • adobe-idp-site-verification=d1133108e03e4afe2b70bb5fa9cd48bed7b416d7b0a67015a2af763a4e48c6f6
  • amazon-business-verification=3d2f6c14de0df33cfcc68066f3588aa4a322b3b316778766f0fd1182e98f0c76
  • apple-domain-verification=OvIPk2WvYt9gHpt1
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