c2education.com

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
c2education.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-17 19:47:02 UTC · ↺ Refresh

MX Hostnames

  • c2education-com.mail.protection.outlook.com

MX Priorities

  • c2education-com.mail.protection.outlook.com: 1

A / AAAA Records

  • 172.67.71.158 (no PTR)
  • 104.26.14.43 (no PTR)
  • 104.26.15.43
  • 2606:4700:20::ac43:479e
  • 2606:4700:20::681a:f2b
  • 2606:4700:20::681a:e2b

Mail Server IPs

  • 52.101.9.5 ↩ mail-mn2pr04cu00205.inbound.protection.outlook.com
  • 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
  • 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
  • 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:c931::1 ↩ mail-sa9pr03cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
  • 2a01:111:f403:c927:: ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com

SOA Record

Raw SOA dawn.ns.cloudflare.com dns.cloudflare.com 2399258697 10000 2400 604800 1800
Primary NS (mname)
dawn.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399258697
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

dawn.ns.cloudflare.com
toby.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:128.136.132.196 ip4:128.136.132.208 include:emsd1.com include:sendgrid.net include:_spf.google.com include:spf.protection.outlook.com include:spf.mandrillapp.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected],mailto:[email protected]; adkim=r; aspf=r; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]

DKIM Selectors

✓ 5 found
google._domainkey
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

11 records
  • atlassian-domain-verification=7YeMLy7akhvurUNAmvVLlkkvL3oE7iR9MwqL5hyykas9h/Zjesi1m07igYD2Cm1x
  • docusign=38c87aa1-a001-4df8-93cf-ebf60f7edac8
  • google-site-verification=Aguc8NxR8UMlVg8VnAsytUv28oVhf-P_PGQR9CHNebQ
  • google-site-verification=phpG_Hw8-QNIcF23VIXgX7nwBw0VnW8AWWhPX8Ka-k0
  • knowbe4-site-verification=6180b2c5e33fbc42ef7e90e4953b2cdd
  • openai-domain-verification=dv-1xOiUpzU8EMYm5Am5Ez042XD
  • sophos-domain-verification=e291aa4bb63481e19aa1f25da08ae72ab8b35f1d4389fbf76ba2af26225f48c3
  • SPFv=spf1 ip4:128.136.132.196 ip4:128.136.132.208 include:emsd1.com include:sendgrid.net include:_spf.google.com include:spf.protection.outlook.com include:spf.mandrillapp.com -all
  • MS=ms52373311
  • ZOOM_verify_JiWBSEiDVBkhx8QeswaAin
  • apple-domain-verification=y8axLRsqL0KgXjNm
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