Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
brooklyn.cuny.edu
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 03:18:25 UTC · ↺ Refresh
MX Hostnames
- omni-ii.brooklyn.cuny.edu
- omni.brooklyn.cuny.edu
MX Priorities
- omni.brooklyn.cuny.edu: 10
- omni-ii.brooklyn.cuny.edu: 20
A / AAAA Records
- 146.245.201.50 (no PTR)
Mail Server IPs
- 146.245.9.151 ↩ omni.brooklyn.cuny.edu
- 146.245.9.152 ↩ omni-ii.brooklyn.cuny.edu
SOA Record
Raw SOA
omni.brooklyn.cuny.edu hostmaster.brooklyn.cuny.edu 2026011311 3600 300 1209600 3600
Primary NS (mname)
omni.brooklyn.cuny.edu
Admin Email (rname)
hostmaster@brooklyn.cuny.edu
Serial
2026011311
Refresh
3600s
Retry
300s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
omni.brooklyn.cuny.edu
acme.ucc.cuny.edu
ext-ns1.columbia.edu
SPF Record
✓ Strict (-all)
v=spf1 ip4:146.245.0.0/16 ip4:100.104.0.0/16 ip4:128.228.0.0/24 ip4:165.193.85.0/24 ip4:66.159.240.154 ip4:66.159.238.127 ip4:24.105.135.62 ip4:100.33.142.130 include:spf.protection.outlook.com include:spf.dynect.net 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];ruf=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]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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=4F1051C1F5AFBAB332157CCC700C400601E5C384
- SPFv=spf1 ip4:146.245.0.0/16 ip4:100.104.0.0/16 ip4:128.228.0.0/24 ip4:165.193.85.0/24 ip4:66.159.240.154 ip4:66.159.238.127 ip4:24.105.135.62 ip4:100.33.142.130 include:spf.protection.outlook.com include:spf.dynect.net include:spf.constantcontact.com -all
- 15110253
- zpynyn1qzysbkj9yxk66d59wz0kbbxvw
- MS=1A099B0E7114459A6E69DFDD3FDC190CEA0AFC33
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