Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mjjt.us
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 07:19:39 UTC · ↺ Refresh
MX Hostnames
- d85585a.ess.barracudanetworks.com
- d85585b.ess.barracudanetworks.com
MX Priorities
- d85585b.ess.barracudanetworks.com: 20
- d85585a.ess.barracudanetworks.com: 10
A / AAAA Records
- 67.55.124.42 ↩ cerealhip.com
Mail Server IPs
- 209.222.82.255 ↩ mail.ess.barracuda.com
- 209.222.82.253 ↩ mail.ess.barracuda.com
- 209.222.82.252 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
ns1.ultratek.com postmaster.ultratek.com 2026031600 3600 1800 1209600 1800
Primary NS (mname)
ns1.ultratek.com
Admin Email (rname)
postmaster@ultratek.com
Serial
2026031600
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
1800s
Nameservers (NS)
ns1.ultratek.com
ns2.ultratek.com
ns3.ultratek.com
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:64.235.144.0/20 ip4:67.55.124.1/26 ip4:209.222.80.0/21 include:spf.ess.barracudanetworks.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=5; rua=mailto:[email protected]; adkim=r; aspf=s
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 5% of failing messages only
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- MS=06731A985B3C94B75353EECE2F551B13453D037F
- SPFv=spf1 a mx ip4:64.235.144.0/20 ip4:67.55.124.1/26 ip4:209.222.80.0/21 include:spf.ess.barracudanetworks.com -all
- google-site-verification=s2OaVJbOi_PaGUBbNZrXM41yWQhxeK9CV_BO38NtCGg
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