Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rbusd.org
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 05:59:49 UTC · ↺ Refresh
MX Hostnames
- mx1.hc5601-84.iphmx.com
- mx2.hc5601-84.iphmx.com
MX Priorities
- mx2.hc5601-84.iphmx.com: 20
- mx1.hc5601-84.iphmx.com: 10
A / AAAA Records
- 104.18.190.233 (no PTR)
- 104.18.189.233 (no PTR)
- 104.16.159.133 (no PTR)
- 104.16.158.133 (no PTR)
Mail Server IPs
- 216.71.146.135 ↩ esa2.hc5601-84.iphmx.com
- 216.71.145.125 ↩ esa1.hc5601-84.iphmx.com
SOA Record
Raw SOA
nccunix.lacoe.edu help_desk.lacoe.edu 2021082564 10800 3600 2419200 900
Primary NS (mname)
nccunix.lacoe.edu
Admin Email (rname)
help_desk@lacoe.edu
Serial
2021082564
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
900s
Nameservers (NS)
nccunix.lacoe.edu
pws.lacoe.edu
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:216.71.145.125 ip4:216.71.146.135 include:spf.protection.outlook.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;rua=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → 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
7 records- google-site-verification=xjp7-1on6ubc3wtvgbopjrgk1yqvkljviqmn4hcmfrq
- cisco-ci-domain-verification=26d9454bffdea0d8f53fd0248ff299b525dcd85cecf8eff572ffd18f82865577
- kcl7doiq0oiqe1mcngpal2t4bc
- adobe-idp-site-verification=56a91d20197c6a78ad81293352e0368da418506fa4b821736880e1648329b138
- apple-domain-verification=xymsSiCiW0qMITI7
- SPFv=spf1 ip4:216.71.145.125 ip4:216.71.146.135 include:spf.protection.outlook.com ~all
- ms=ms34725969
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