Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
iu12.org
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-02 01:16:15 UTC · ↺ Refresh
MX Hostnames
- d132115b.ess.barracudanetworks.com
- d132115a.ess.barracudanetworks.com
MX Priorities
- d132115a.ess.barracudanetworks.com: 10
- d132115b.ess.barracudanetworks.com: 20
A / AAAA Records
- 104.17.71.73 (no PTR)
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
ns11.constellix.com dns.constellix.com 2015010235 43200 3600 1209600 180
Primary NS (mname)
ns11.constellix.com
Admin Email (rname)
dns@constellix.com
Serial
2015010235
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns61.constellix.net
ns11.constellix.com
ns21.constellix.com
ns31.constellix.com
ns41.constellix.net
ns51.constellix.net
SPF Record
✓ Strict (-all)
v=spf1 ip4:208.67.140.35/32 ip4:208.67.140.28/32 ip4:204.14.15.26/32 ip4:208.67.140.48/32 ip4:208.67.140.13/32 include:_spf.google.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected], mailto:[email protected]; ruf=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected], mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._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
10 records- SPFv=spf1 ip4:208.67.140.35/32 ip4:208.67.140.28/32 ip4:204.14.15.26/32 ip4:208.67.140.48/32 ip4:208.67.140.13/32 include:_spf.google.com include:spf.protection.outlook.com -all
- wZZYKpQxKXJf9yTCxJ14cm5oa6GbEN3Ub5PnZ06EKONyfs7cITAOzabxAJEsKbAzc9Nx2Z/N/cumwzKBldG7AA==
- 3P4-5TR-KW6
- MS=83EAB134EBBCCE255DEA6263C4D40720AF830B14
- apple-domain-verification=14GnFIWVE2jJ5XdH
- duo_sso_verification=T6kyzG8EKpLXw7MUA4dI96xa9YhosaWwfVRfEM0XzWDV2gT776ZIy4U1XUP5VTHz
- teamviewer-sso-verification=8a44da4ba4a841beb98db77ed07a3cb8
- google-gws-recovery-domain-verification=52063131
- 00Dao00001SGltZ=1TBao0000000Fof
- google-site-verification=2cZBNlBdgm5nE4LvRL7fBFvndpw_fTFtcBn-6efkUZU
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