Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
clarksoncollege.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 05:05:46 UTC · ↺ Refresh
MX Hostnames
- clarksoncollege-edu.mail.protection.outlook.com
MX Priorities
- clarksoncollege-edu.mail.protection.outlook.com: 0
A / AAAA Records
- 172.67.145.91 (no PTR)
- 104.21.55.61 (no PTR)
- 2606:4700:3035::ac43:915b
- 2606:4700:3034::6815:373d
Mail Server IPs
- 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
- 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 40.93.192.4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f90a:: ↩ mail-bn6pr02cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
SOA Record
Raw SOA
paityn.ns.cloudflare.com dns.cloudflare.com 2398299892 10000 2400 604800 1800
Primary NS (mname)
paityn.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398299892
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
paityn.ns.cloudflare.com
syeef.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 mx include:spf.protection.outlook.com include:spf.watermarkinsights.com include:mktomail.com include:cust-spf.cashnet.com include:_spf.samanage.com include:sendgrid.net ip4:23.21.109.197 ip4:23.21.109.212 ip4:147.160.167.14 ip4:147.160.167.15 ip4:52.49.235.189 ip4:52.49.201.246 ip4:198.245.81.0/24 ip4:136.147.176.0/24 ip4:13.111.0.0/16 ip4:136.147.182.0/24 ip4:136.147.135.0/24 ip4:199.122.123.0/24 ip4:139.60.0.0/22 -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; rf=afrf; pct=100;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
14 records- l88u817umo3sodrkkqar24ngrm
- google-site-verification=KPpbOgK9KbjSiW-XSzlbhYobaoZwQfCU3CLvsU_1vuE
- remarkable-domain-verification=851fc6f8-80b1-4c16-9a6e-aa917ee000c2
- e2ma-verification=39pfb
- SPFv=spf1 mx include:spf.protection.outlook.com include:spf.watermarkinsights.com include:mktomail.com include:cust-spf.cashnet.com include:_spf.samanage.com include:sendgrid.net ip4:23.21.109.197 ip4:23.21.109.212 ip4:147.160.167.14 ip4:147.160.167.15 ip4:52.49.235.189 ip4:52.49.201.246 ip4:198.245.81.0/24 ip4:136.147.176.0/24 ip4:13.111.0.0/16 ip4:136.147.182.0/24 ip4:136.147.135.0/24 ip4:199.122.123.0/24 ip4:139.60.0.0/22 -all
- solarwinds-service0desk-verification=4515458ad09fb7a81e1cb280ed0c0da4
- e2ma-verification=29pfb
- apple-domain-verification=G4Q7L9COYvfrsMHn
- pardot703333=5f0715d818b6cfe9c52432175c7b2102a5d92bc363e258057f1677305ec15ad5
- d365mktkey=35lSpeY2VAOUK6nbHQt5Or4RNCrEpQVIyWhB7zyGLUwx
- ZOOM_verify_YBhd_XzlTU2n3GdzrIGZsQ
- bw=j1EKR4mg8ocf3Ls7u7KIIFqdvACFxJ1mXCAu6CHTGrgA
- d365mktkey=Gjjm96truRk48PvDQ4hfHci030LxGsNTz1P1iJtVmiUx
- adobe-idp-site-verification=51c02a54b4fb97e954ba4a88d23512ba61aa3a614e4d72d12fc5c47b4f4b0151
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