cornell-co.com

Valid Email Server
Domain Lookup › cornell-co.com

Domain Overview

DNS: ✓ 13h ago Checker: ✓ 13h ago
cornell-co.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 06:51:43 UTC · ↺ Refresh

MX Hostnames

  • mx1-us1.ppe-hosted.com
  • mx2-us1.ppe-hosted.com

MX Priorities

  • mx2-us1.ppe-hosted.com: 30
  • mx1-us1.ppe-hosted.com: 20

A / AAAA Records

  • 216.24.57.1 (no PTR)

Mail Server IPs

  • 148.163.129.51 ↩ mx2-us1.ppe-hosted.com
  • 67.231.154.163 ↩ mx2-us1.ppe-hosted.com
  • 148.163.129.50 ↩ mx1-us1.ppe-hosted.com
  • 67.231.154.162 ↩ mx1-us1.ppe-hosted.com

SOA Record

Raw SOA ns11.worldnic.com namehost.worldnic.com 126050418 10800 3600 604800 3600
Primary NS (mname)
ns11.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126050418
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns11.worldnic.com
ns12.worldnic.com

SPF Record

✓ Strict (-all)
v=spf1 mx ip4:20.84.72.85 ip4:208.91.197.27 ip4:199.180.149.45 mx:mail.cornell-co.com a:dispatch-us.ppe-hosted.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

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

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
  • ywJ2R9MkcM0OPm88IDAhJU8npgtHxEZMnLxo72aXKRoDuDn5fgl3IKjOxoXKn3EvROLlBe9eL8I9zk4NBqsD7A==
  • apple-domain-verification=lKCFd5LfRKg0kaX4
  • GV2EIMP48GRVUCYH8FTWYBB5YAVG9IJAX59K2NL3
  • SPFv=spf1 mx ip4:20.84.72.85 ip4:208.91.197.27 ip4:199.180.149.45 mx:mail.cornell-co.com a:dispatch-us.ppe-hosted.com -all
  • ppe-a09994259bf20dafc72a
  • MS=ms67464646
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