Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
riopc.edu
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-30 18:43:01 UTC · ↺ Refresh
MX Hostnames
- d236335b.ess.barracudanetworks.com
- d236335a.ess.barracudanetworks.com
MX Priorities
- d236335b.ess.barracudanetworks.com: 10
- d236335a.ess.barracudanetworks.com: 5
A / AAAA Records
- 141.193.213.10 (no PTR)
- 141.193.213.11 (no PTR)
Mail Server IPs
- 209.222.82.253 ↩ mail.ess.barracuda.com
- 209.222.82.255 ↩ mail.ess.barracuda.com
- 209.222.82.252 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
ns0.dnsmadeeasy.com dns.dnsmadeeasy.com 2008010291 43200 3600 1209600 180
Primary NS (mname)
ns0.dnsmadeeasy.com
Admin Email (rname)
dns@dnsmadeeasy.com
Serial
2008010291
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns4.dnsmadeeasy.com
ns3.dnsmadeeasy.com
ns2.dnsmadeeasy.com
ns1.dnsmadeeasy.com
ns0.dnsmadeeasy.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:209.222.82.0/24 mx ?include:spf.ess.barracudanetworks.com include:spf.constantcontact.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; fo=1; rua=mailto:[email protected],mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected],mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected],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
5 records- MS=ms16443157
- cisco-ci-domain-verification=6513a113a3edb0154a5d7afd8ad08774046022e3db1407dabd36c296bba72e2e
- SPFv=spf1 ip4:209.222.82.0/24 mx ?include:spf.ess.barracudanetworks.com include:spf.constantcontact.com -all
- MS=A48C111B010D592BA3261603E011F5FD5E415834
- adobe-idp-site-verification=b880a6588864f3f303d3ab1dbdb6a5a1085669b95a99c8b2f88dec593f7b0af6
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