ll.mit.edu

Valid Email Server
Domain Lookup › ll.mit.edu

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
ll.mit.edu
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-30 02:07:20 UTC · ↺ Refresh

MX Hostnames

  • mx3.ll.mit.edu
  • mx2.ll.mit.edu

MX Priorities

  • mx3.ll.mit.edu: 5
  • mx2.ll.mit.edu: 5

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 129.55.12.52 ↩ mx3.ll.mit.edu
  • 129.55.12.51 ↩ mx2.ll.mit.edu

SOA Record

Raw SOA dns1.ll.mit.edu server-team.ll.mit.edu 748 10800 3600 2419200 900
Primary NS (mname)
dns1.ll.mit.edu
Admin Email (rname)
server-team@ll.mit.edu
Serial
748
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
900s

Nameservers (NS)

dns1.ll.mit.edu
dns2.ll.mit.edu

SPF Record

✓ Strict (-all)
v=spf1 ip4:129.55.12.50 ip4:129.55.12.51 ip4:129.55.12.52 -all
📊 DNS lookups: 0/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1;p=none;rua=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

15 records
  • identrust_validation=m0MnrmLkSGyhxAXEb6IZopLLvc8rUempfHTSzxnGmgNq
  • BIN
  • google-site-verification=_OueDsI_x1wfdRkg33_ZpbUeNfKSnWP7F_L1NBYhU4I
  • SPFv=spf1 ip4:129.55.12.50 ip4:129.55.12.51 ip4:129.55.12.52 -all
  • slack-domain-verification=sRfEITFjT2iWfF6SKzkjgr06K58XJO8AGVhKdHhz
  • openai-domain-verification=dv-hxQrWGg1gyaZQpYVLn5bXDSY
  • _globalsign-domain-verification=-UyhjZOV9ddiEMgC6kRvPRndKXM9bO6JWESkrRdZDV
  • figma-domain-verification=e06d4739a3cc65ee0d05b05ba842f4e1a9659db412d5810d654f9af11726cccb-1760535468
  • wHdsc5hP6xiTgXYxXIki+qWhh8YdzFIMLGMYkZNNckKyEMyFi67RqqY6/QHo46SVcjgb18z+cxEbneVn5lnwfA==
  • apple-domain-verification=mlKXtlUQ6eLgaUHZ
  • amazonses:jRz4sY5vxuzO957SjaXzsMug68doFzkgfUSWdHUnrkw=
  • amazonses:Me14K3aTIAP1s9tLbBkurFgtv0tincjvjFpoQOTHa2k=
  • adobe-idp-site-verification=88ab3ad16ed41b09dcf0f6dbabfe3ca0bbd59581830d3d00de9b82ce6e4ad0bb
  • MS=ms90821636
  • 12A8-1D60-C5D4-CAE4-632D-5487-20C1-B8E2
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