jhuapl.edu

Valid Email Server
Domain Lookup › jhuapl.edu
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
jhuapl.edu
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 14:45:06 UTC · ↺ Refresh

MX Hostnames

  • aplegw15.jhuapl.edu
  • aplegw11.jhuapl.edu
  • aplegw16.jhuapl.edu

MX Priorities

No priority data.

A / AAAA Records

  • 23.201.191.72
  • 2600:141b:1c00:39e::2298
  • 2600:141b:1c00:39d::2298

Mail Server IPs

No IPs resolved.

SOA Record

No SOA record found.

Nameservers (NS)

a7-66.akam.net
a12-66.akam.net
a5-65.akam.net
a24-64.akam.net
a1-121.akam.net
a2-67.akam.net

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:128.244.251.0/24 ip4:128.244.43.0/28 ip4:128.244.208.130 ip4:128.244.208.131 ip4:128.244.208.132 mx ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; fo=1; adkim=r; rua=mailto:[email protected]; ruf=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 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

17 records
  • slack-domain-verification=zRblbrJ3pYOQrzNlscjb4SjQ5oFdPvCs7w2EbHhT
  • openai-domain-verification=dv-mTnY3JilyjE1YCxsoAIVPAH3
  • duo_sso_verification=QpdBNAI3kyoR4wUsvRFq1jQ1YcTwNC2KEjmeKdHkd79Qga6mT09TAxSI2m7L3Rjp
  • smartsheet-gov-site-validation=Di-sr5F3KATp9iHxNT4Uw-dQgkFYqbfa
  • apple-domain-verification=aAvXTLQ4Un0PaStD
  • adobe-idp-site-verification=ee049a8f-813b-442f-90b4-fd104f875f5d
  • docker-verification=74707060-ea1a-48b1-b640-6a329db461d5
  • SPFv=spf1 ip4:128.244.251.0/24 ip4:128.244.43.0/28 ip4:128.244.208.130 ip4:128.244.208.131 ip4:128.244.208.132 mx ~all
  • google-gws-recovery-domain-verification=61164235
  • duo_sso_verification=gKvlwWd4Fvr6B8p6oDANh07xX64SwVcFrnwQldvasYnCkL88dgjZdAJlclcNO8I9
  • slack-domain-verification=sL3vQmrG3nMI3nlYRH4je7Zbrqo5ITqig05DxKHy
  • openai-domain-verification=dv-zu0mGeENBTYBhC5qeGTFobj5
  • jamf-site-verification=PeuuGuNBwj7C2p9253xp8g
  • MS=BEAF476F943E1201991908B95AFB9B197DEA8C91
  • _qgsf4f5mdnjvi3o9z3qee7b14jg7hh3
  • MS=ms44522167
  • apple-domain-verification=RKLIFrIynQzP4pCG
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