Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
arapahoe.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 21:02:48 UTC · ↺ Refresh
MX Hostnames
- arapahoe-edu.mail.protection.outlook.com
MX Priorities
- arapahoe-edu.mail.protection.outlook.com: 10
A / AAAA Records
- 69.16.200.10 ↩ production.arapahoe.edu
Mail Server IPs
- 52.101.50.13 ↩ mail-mw2pr02cu00605.inbound.protection.outlook.com
- 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
- 52.101.50.1 ↩ mail-co1pr05cu00401.inbound.protection.outlook.com
- 52.101.40.24 ↩ mail-cy5pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c92c::4 ↩ mail-dm6pr05cu00404.inbound.protection.outlook.com
- 2a01:111:f403:f902::2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
kate.ns.cloudflare.com dns.cloudflare.com 2399936574 10000 2400 604800 1800
Primary NS (mname)
kate.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399936574
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
razvan.ns.cloudflare.com
kate.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:164.47.16.50 ip4:164.47.16.51 include:spf.protection.outlook.com include:cust-spf.cashnet.com include:a._spf.brightspace.com include:_spf.atlassian.net include:_spf.mailgun.org ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
18 records- _64t0tlmbsu0higjeh6exg24buma2s2n
- ZOOM_verify_en49Pvf3ToK5OZQbwuAv4Q
- _l6v9d6v31les1y1nbov5bl1wuamoiab
- _c1lmsgqvcggtn48ks9rp1iso4oz3dld
- _5gji8x6qn1xc3x1edet5lcni1td6g1b
- MS=BC7CCA2FDACB72DA6FA28919D73F0B27D6BA41BB
- ciscocidomainverification=6bd4be92bf963912a3475a7f89fc9e37faece8451d9e0b2e70eedfcd11edf42b
- atlassian-domain-verification=bK2x1HWF4Awa3VRdDjNHTjJwyOVXDqgSNuIOezqanBAu0Q18MbavGkpRBEQyS0OO
- jamf-site-verification=z80fPPYG8qlgB2CN2Vh5bQ
- apple-domain-verification=eqYaex0mLvHaHyDE
- atlassian-sending-domain-verification=04e76b7a-bde1-4d3b-86a4-bdb4fb1718f6
- adobe-idp-site-verification=aec329f130616a320491a1f9b9caf62d27aaf90da1a12665e37de3fc1129715c
- SPFv=spf1 ip4:164.47.16.50 ip4:164.47.16.51 include:spf.protection.outlook.com include:cust-spf.cashnet.com include:a._spf.brightspace.com include:_spf.atlassian.net include:_spf.mailgun.org ~all
- MS=ms53678282
- reftab-domain-verification=409ced8232cc1d985d88a2b0954f480e
- knowbe4-site-verification=ae8aaaf3d0079a3f4370bf9e9de73693
- duo_sso_verification=dTUSRbh70inRXv4q0LaHBH4aBXH3pMaR6nQ2uSlGcLUC07L3ubmf07x4tu421VbE
- google-site-verification=mhxamAE1PJVQXMfwclgbdUzPeexErOm24RK5GXx3o54
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