Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
esu13.org
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 10:32:55 UTC · ↺ Refresh
MX Hostnames
- d130757b.ess.barracudanetworks.com
- d130757a.ess.barracudanetworks.com
- mail.esu13.org
MX Priorities
- d130757a.ess.barracudanetworks.com: 10
- d130757b.ess.barracudanetworks.com: 10
- mail.esu13.org: 10
A / AAAA Records
- 198.17.44.157 ↩ ip-198-17-44-157.socs.net
Mail Server IPs
- 209.222.82.253 ↩ mail.ess.barracuda.com
- 209.222.82.252 ↩ mail.ess.barracuda.com
- 209.222.82.255 ↩ mail.ess.barracuda.com
- 162.127.13.10 ↩ mail.esu13.org
SOA Record
Raw SOA
ns01.esu13.org tech.esu13.org 2009010243 43200 3600 1209600 180
Primary NS (mname)
ns01.esu13.org
Admin Email (rname)
tech@esu13.org
Serial
2009010243
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns03.esu13.org
ns02.esu13.org
ns01.esu13.org
ns04.esu13.org
ns06.esu13.org
ns05.esu13.org
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx a:mail.esu13.org include:_spf.google.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
google._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- SPFv=spf1 a mx a:mail.esu13.org include:_spf.google.com ~all
- google-site-verification=_9EHl0SIRVaOzrKJzSOik0ezl11fTBUia4B_KX-2GSY
- adobe-idp-site-verification=32335d45252f724593faf23e28c480f87c8d6468aa554c0e919428a203b7d01f
- google-site-verification=aw8SI-XLaGY_96_8kZsvT5YngfenM81nT6oSQCM8IXk
- MS=A874EA3F289BDE600C59E74F45FDFD412D8B332A
- google-site-verification=O2gRMLLeF3UwsTxMO3HV2jmOeth6vgF54NxDJ3zAiqY
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