letu.edu

Valid Email Server
Domain Lookup › letu.edu

Domain Overview

DNS: ✓ 1mo ago Checker: ✓ 1mo ago
letu.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-06 16:23:40 UTC · ↺ Refresh

MX Hostnames

  • letu-edu.mail.protection.outlook.com

MX Priorities

  • letu-edu.mail.protection.outlook.com: 0

A / AAAA Records

  • 3.167.112.56 ↩ server-3-167-112-56.iad55.r.cloudfront.net
  • 3.167.112.34 ↩ server-3-167-112-34.iad55.r.cloudfront.net
  • 3.167.112.40
  • 3.167.112.54

Mail Server IPs

  • 52.101.11.9 ↩ mail-sn1pr02cu00101.inbound.protection.outlook.com
  • 52.101.9.26 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
  • 52.101.41.26 ↩ mail-sj0pr03cu01702.inbound.protection.outlook.com
  • 40.93.192.4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
  • 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f903:: (no PTR)
  • 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com

SOA Record

Raw SOA ns10.letu.edu letnet.letu.edu 2009119871 43200 3600 1209600 180
Primary NS (mname)
ns10.letu.edu
Admin Email (rname)
letnet@letu.edu
Serial
2009119871
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s

Nameservers (NS)

ns11.letu.edu
ns12.letu.edu
ns14.letu.edu
ns15.letu.edu
ns10.letu.edu
ns13.letu.edu

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:66.185.64.0/20 ip4:63.101.151.0/28 ip4:12.228.6.215 ip4:198.187.196.0/24 include:spf.protection.outlook.com include:amazonses.com include:outboundmail.blackbaud.net include:spf.elluciancloud.com include:_spf.salesforce.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected],mailto:[email protected],mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected],mailto:[email protected]

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ DKIM properly configured for selector: selector1

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

All TXT Records

9 records
  • atlassian-domain-verification=V0X7cnzCX1uNANag4D2WktDuyWkPfAMujPnZWBg61RD9oqg7zpENIZBnIrsJxzyK
  • pardot1096183=b004e73781039625a25f693b7b78b93ea36213cc196e955342e49a1457dc4595
  • SPFv=spf1 ip4:66.185.64.0/20 ip4:63.101.151.0/28 ip4:12.228.6.215 ip4:198.187.196.0/24 include:spf.protection.outlook.com include:amazonses.com include:outboundmail.blackbaud.net include:spf.elluciancloud.com include:_spf.salesforce.com ~all
  • apple-domain-verification=brMDgr2UGhGM9O41
  • sending_domain1096183=2bc80249edb6164c7f1b433b99c7e382d5e565156524ba2296b371aba36b4042
  • autodesk-domain-verification=lbPoEiN_5OLwAtMWNwoM
  • pYJ1rl8Er7a7Ba5Kuxa5nNP6allNq6qjcmLSJvyfGabbwvLEQvCWS2Ao4FFPgLl8MQqcYIjxIUKPBH/qMv11XA==
  • google-site-verification=r7A9S4WhXQEbONIs_gaoHR4vLL5tppsUPR69vXyiQXA
  • MS=ms13680076
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