covalentchemical.com

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
covalentchemical.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-02 08:56:03 UTC · ↺ Refresh

MX Hostnames

  • d338211a.ess.barracudanetworks.com
  • covalentchemical-com.mail.protection.outlook.com
  • d338211b.ess.barracudanetworks.com

MX Priorities

  • d338211a.ess.barracudanetworks.com: 0
  • d338211b.ess.barracudanetworks.com: 10
  • covalentchemical-com.mail.protection.outlook.com: 20

A / AAAA Records

  • 52.37.87.132

Mail Server IPs

  • 209.222.82.252 ↩ mail.ess.barracuda.com
  • 209.222.82.255 ↩ mail.ess.barracuda.com
  • 209.222.82.253 ↩ mail.ess.barracuda.com
  • 52.101.10.8 ↩ mail-bn1pr04cu00100.inbound.protection.outlook.com
  • 52.101.9.17 (no PTR)
  • 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
  • 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
  • 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
  • 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com
  • 2a01:111:f403:c91d::a ↩ mail-co1pr21cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:c927::1

SOA Record

Raw SOA ns19.domaincontrol.com dns.jomax.net 2026010900 28800 7200 604800 600
Primary NS (mname)
ns19.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026010900
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns20.domaincontrol.com
ns19.domaincontrol.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1;p=reject;rua=mailto:[email protected];ruf=mailto:[email protected];fo=1
✓ Reject — strongest protection
📋 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

3 records
  • SPFv=spf1 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com ~all
  • MS=ms59392446
  • google-site-verification=1wtkqCUj59RjjYkxkESOyd8ZN2-bKxRKdZDfWbgBSf0
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