Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
aviationmaintenance.edu
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 05:47:27 UTC · ↺ Refresh
MX Hostnames
- d111426a.ess.barracudanetworks.com
- d111426b.ess.barracudanetworks.com
MX Priorities
- d111426b.ess.barracudanetworks.com: 10
- d111426a.ess.barracudanetworks.com: 10
A / AAAA Records
- 141.193.213.11 (no PTR)
- 141.193.213.10 (no PTR)
Mail Server IPs
- 209.222.82.255 ↩ mail.ess.barracuda.com
- 209.222.82.252 ↩ mail.ess.barracuda.com
- 209.222.82.253 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
ns1.centuravb.net root.208-117-3-25.centuravb.net 2026032100 3600 1800 1209600 86400
Primary NS (mname)
ns1.centuravb.net
Admin Email (rname)
root@208-117-3-25.centuravb.net
Serial
2026032100
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns1.centuravb.net
ns2.centuravb.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com include:sendgrid.net include:sparkpostmail.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; fo=1; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
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
13 records- anthropic-domain-verification-s5f95h=nfUrnsFbOk8bQmfKXnFmMkebI
- adobe-idp-site-verification=f4653f8f5d288e99fb33a661500e37ae64ab4c0c60d090eee4f4c2e6f0b733fd
- 5t7bfqlte9oeisoks7khqs5kn9
- smartsheet-site-validation=OEcit0H7UngiM6pyRfct_QrZE54JhR8J
- yahoo-verification-key=jNIHTsNDTm+b7uEckYhvz9ywmNc4GHI7pGQf0VgALDQ=
- SPFv=spf1 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com include:sendgrid.net include:sparkpostmail.com -all
- amazonses:tbA3EAj8cHb0qEOaAzozAnPs05G2aZsQIDwCw2W3Hpw=
- mandrill_verify.lq1NvEotJKJII0roWedQIQ
- google-site-verification=UcotGxCOXZjSJCbBMIG_v_T8rA8Cmx4gJmfArbPPong
- adobe-sign-verification=85180e57b6a815af4e68226b5ec52f77
- google-site-verification=_2uolTEcuLgtVpP9AJuwGq2iy9DVyb1IT7fgJReasDE
- smartsheet-site-validation=n_RKFyhRe320lzu4vXQB4x3S_1mV7cZN
- apple-domain-verification=RbOUNzr6jbKfbYKF
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