Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
collegiseducation.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 03:44:39 UTC · ↺ Refresh
MX Hostnames
- collegiseducation-com.mail.protection.outlook.com
MX Priorities
- collegiseducation-com.mail.protection.outlook.com: 1
A / AAAA Records
- 141.193.213.10 (no PTR)
- 141.193.213.11 (no PTR)
Mail Server IPs
- 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 52.101.40.24 ↩ mail-cy5pr05cu00100.inbound.protection.outlook.com
- 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c946::1 ↩ mail-ch1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c902::1 ↩ mail-sj2pr05cu00401.inbound.protection.outlook.com
- 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-431.awsdns-53.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-431.awsdns-53.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1251.awsdns-28.org
ns-1878.awsdns-42.co.uk
ns-431.awsdns-53.com
ns-523.awsdns-01.net
SPF Record
✓ Strict (-all)
v=spf1 a:smtpout5.learntoday.info ip4:192.184.113.195 ip4:192.184.113.252 ip4:192.184.113.184 ip4:192.184.113.200 ip4:50.226.34.18 include:spf.protection.outlook.com include:_spf.salesforce.com include:spf1.collegiseducation.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict 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
✓ 3 found
selector1._domainkey
selector2._domainkey
k1._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
10 records- webexdomainverification.4C675B8B5BB2B136E053AB06FC0A3F65=1603aaf8-1d9d-4502-8c3b-147ba7a2d5f0
- MS=ms75441825
- OkEweytrxDeojgUuSBlKTTT9pOw/mLqed5ZSDcrXJi/KXwtyiMT9Q3lcGwqML8CNL7NDhX9QdY1bxeit6bboCw==
- ZOOM_verify_r2PI9aQQSU2AxNwhI9zpeg
- cisco-ci-domain-verification=31f2a7ec8b5833f8f27cb58c15e7b718431d184e74cf1b1520380ef269125e54
- google-site-verification=1IEIafajLsUlXhUGEo0vW8yKD5I6HUSlm1axDnFGTMg
- openai-domain-verification=dv-CS1PrLdr77q2dOujOSzWSX1s
- stzBPaIiS7nL1aK94l2X3zIubx/Yxw74qfW7azQr1DuE1rGa9Gr9J9tDCufd9wTYJo9iVIj8MGmg5FzW+gTRxw==
- SPFv=spf1 a:smtpout5.learntoday.info ip4:192.184.113.195 ip4:192.184.113.252 ip4:192.184.113.184 ip4:192.184.113.200 ip4:50.226.34.18 include:spf.protection.outlook.com include:_spf.salesforce.com include:spf1.collegiseducation.com -all
- webexdomainverification.4C675B8B206AB136E053AB06FC0A3F65=02a7a726-e1c2-4173-b21d-a206974cfe0e
Full email verification for collegiseducation.com
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