carnegie-institute.edu

Valid Email Server
Domain Lookup › carnegie-institute.edu

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
carnegie-institute.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-18 15:36:37 UTC · ↺ Refresh

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MX Hostnames

  • carnegieinstitute-edu02b.mail.protection.outlook.com

MX Priorities

  • carnegieinstitute-edu02b.mail.protection.outlook.com: 0

A / AAAA Records

  • 70.32.23.93 ↩ mi3-mw5.a2hosting.com

Mail Server IPs

  • 52.101.41.0 ↩ mail-byapr05cu00400.inbound.protection.outlook.com
  • 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
  • 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
  • 52.101.40.6 ↩ mail-cy1pr03cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f90a:: ↩ mail-bn6pr02cu00300.inbound.protection.outlook.com
  • 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com

SOA Record

Raw SOA ns4.a2hosting.com rmceachern.carnegie-institute.edu 2026012701 10800 3600 604800 10800
Primary NS (mname)
ns4.a2hosting.com
Admin Email (rname)
rmceachern@carnegie-institute.edu
Serial
2026012701
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
10800s

Nameservers (NS)

ns1.a2hosting.com
ns4.a2hosting.com
ns2.a2hosting.com
ns3.a2hosting.com

SPF Record

✓ Strict (-all)
v=spf1 include:_spf.smtp.com include:spf.protection.outlook.com ip4:162.17.153.181 include:_spf.smtp.com include:spf.spamhero.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
⚠ 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: 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

4 records
  • rdz2k52d5vs2pbwx19nhhq512dr8757d
  • google-site-verification=Rg7Pw_JuSxdsJaHXKkjpbzIGRWcbGbQAb995Hk8SFg8
  • y7wr6ck9db12b8tw59s1ppc2vzy456x4
  • SPFv=spf1 include:_spf.smtp.com include:spf.protection.outlook.com ip4:162.17.153.181 include:_spf.smtp.com include:spf.spamhero.com -all
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