Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
co.cass.in.us
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-06 12:42:50 UTC · ↺ Refresh
MX Hostnames
- co-cass-in-us.mail.protection.outlook.com
MX Priorities
- co-cass-in-us.mail.protection.outlook.com: 0
A / AAAA Records
- 108.178.29.27 ↩ 27.29.178.108.unassigned.ord.singlehop.net
- 69.163.178.18 ↩ apache2-quack.pdx1-shared-a1-02.dreamhost.com
Mail Server IPs
- 52.101.11.12 ↩ mail-sa9pr09cu00104.inbound.protection.outlook.com
- 52.101.8.52 ↩ mail-ds0pr09cu00104.inbound.protection.outlook.com
- 52.101.9.19 ↩ mail-blapr09cu00103.inbound.protection.outlook.com
- 52.101.8.50 ↩ mail-dm6pr09cu00202.inbound.protection.outlook.com
- 2a01:111:f403:f900::1 ↩ mail-blapr09cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f904::1 ↩ mail-ds0pr09cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f90e::1 ↩ mail-sa9pr09cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f904:: ↩ mail-dm6pr09cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.dreamhost.com hostmaster.dreamhost.com 2026031703 20481 600 1814400 60
Primary NS (mname)
ns1.dreamhost.com
Admin Email (rname)
hostmaster@dreamhost.com
Serial
2026031703
Refresh
20481s
Retry
600s
Expire
1814400s
Minimum TTL
60s
Nameservers (NS)
ns2.dreamhost.com
ns3.dreamhost.com
ns1.dreamhost.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:50.205.105.66 ip4:23.21.109.197 ip4:23.21.109.212 ip4:147.160.167.0/26 include:_spf.psm.knowbe4.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=30; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 30% of failing messages only
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
5 records- google-site-verification=dl1sOXkQHYS5P0H25IeokoBLiSUYSZ06q41o-47qBGs
- SPFv=spf1 ip4:50.205.105.66 ip4:23.21.109.197 ip4:23.21.109.212 ip4:147.160.167.0/26 include:_spf.psm.knowbe4.com include:spf.protection.outlook.com -all
- knowbe4-site-verification=f436ab0de0ba2c07bf7554571b8db0fe
- duo_sso_verification=RljVH7XKFiZYbqMoyXdvZeRMPJc7DVUXnTPp3QBuWoMGjVzCiwr1bmky3DVSXlSh
- MS=ms72179029
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