ttcu.org

Valid Email Server
Domain Lookup › ttcu.org

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
ttcu.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-26 20:53:09 UTC · ↺ Refresh

MX Hostnames

  • tencu-com.mail.protection.outlook.com

MX Priorities

  • tencu-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 162.159.130.6 (no PTR)
  • 162.159.133.6 (no PTR)

Mail Server IPs

  • 52.101.41.58 ↩ mail-sj0pr02cu00102.inbound.protection.outlook.com
  • 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
  • 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
  • 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
  • 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:c927::1 ↩ mail-bn8pr05cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:f802::2 ↩ mail-sj2pr05cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:c946::7 ↩ mail-ch5pr02cu00307.inbound.protection.outlook.com

SOA Record

Raw SOA ns01.astrumlabs.net dnsadmin.astrumlabs.net 2025061701 3600 1800 1209600 3600
Primary NS (mname)
ns01.astrumlabs.net
Admin Email (rname)
dnsadmin@astrumlabs.net
Serial
2025061701
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
3600s

Nameservers (NS)

ns05.astrumlabs.net
ns07.astrumlabs.net
ns01.astrumlabs.net
ns06.astrumlabs.net

SPF Record

✓ Strict (-all)
v=spf1 ip4:216.77.142.130 ip4:136.40.161.18 ip4:97.89.75.66 ip4:68.232.131.30 ip4:68.232.140.103 ip4:68.232.143.79 ip4:68.232.141.148 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com a:_mailhosts.swbc.com include:spfhost.messageprovider.com include:zcsend.net ip4:207.45.164.29 -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none; adkim=r; aspf=r; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

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

All TXT Records

6 records
  • smflmfj0hpq9g3v9qlh5584dqp
  • docusign=9dfcd5ef-fe9a-413e-83d8-fc2be52778df
  • MS=ms72287685
  • docusign=bce022c0-b473-4507-8b99-957fa1c9818c
  • apple-domain-verification=h4Crv7qLTCLP7AYd
  • SPFv=spf1 ip4:216.77.142.130 ip4:136.40.161.18 ip4:97.89.75.66 ip4:68.232.131.30 ip4:68.232.140.103 ip4:68.232.143.79 ip4:68.232.141.148 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com a:_mailhosts.swbc.com include:spfhost.messageprovider.com include:zcsend.net ip4:207.45.164.29 -all
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