barnard.edu

Valid Email Server
Domain Lookup › barnard.edu

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
barnard.edu
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-23 08:09:21 UTC · ↺ Refresh

MX Hostnames

  • aspmx4.googlemail.com
  • aspmx.l.google.com
  • aspmx3.googlemail.com
  • aspmx2.googlemail.com
  • alt2.aspmx.l.google.com
  • aspmx5.googlemail.com
  • alt1.aspmx.l.google.com

MX Priorities

  • alt1.aspmx.l.google.com: 20
  • aspmx.l.google.com: 10
  • aspmx5.googlemail.com: 30
  • aspmx4.googlemail.com: 30
  • aspmx3.googlemail.com: 30
  • aspmx2.googlemail.com: 30
  • alt2.aspmx.l.google.com: 20

A / AAAA Records

  • 107.21.241.248

Mail Server IPs

  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1a (no PTR)
  • 64.233.180.26 ↩ pe-in-f26.1e100.net
  • 2607:f8b0:4004:c0b::1b ↩ bj-in-f27.1e100.net
  • 173.194.76.27 ↩ ws-in-f27.1e100.net
  • 2a00:1450:400c:c00::1a ↩ ws-in-x1a.1e100.net
  • 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
  • 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
  • 172.253.116.27 ↩ dj-in-f27.1e100.net
  • 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net

SOA Record

Raw SOA ext-ns1.columbia.edu hostmaster.columbia.edu 8551 3600 1800 2419200 300
Primary NS (mname)
ext-ns1.columbia.edu
Admin Email (rname)
hostmaster@columbia.edu
Serial
8551
Refresh
3600s
Retry
1800s
Expire
2419200s
Minimum TTL
300s

Nameservers (NS)

ext-ns1.columbia.edu
auth2.dns.cogentco.com
auth1.dns.cogentco.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf1.barnard.edu include:_spf2.barnard.edu include:_spf3.barnard.edu include:_spf4.barnard.edu include:_spf5.barnard.edu include:_spf.google.com ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate 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

✓ 5 found
google._domainkey
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google

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

All TXT Records

8 records
  • ca3-d23b1ab667fb42d0ad3c5995beac293b
  • google-site-verification=YaCwVI4VL-wywqQc9XFZJpt7Qq4YRR9qkIeM3SAmFWE
  • e2ma-verification=6xrgb
  • SPFv=spf1 include:_spf1.barnard.edu include:_spf2.barnard.edu include:_spf3.barnard.edu include:_spf4.barnard.edu include:_spf5.barnard.edu include:_spf.google.com ~all
  • adobe-idp-site-verification=3bfb883552fb8747cb677762940e97474e3fb2774e2c67b386858ecd664e0f3f
  • apple-domain-verification=HlAoa8IM6aV7MmdZ
  • MS=1C6AF196D8DC18F53F1F0B10BEE851A2B5060EB3
  • ca3-65ae654664ce477f8c147717eb515f8a
Full email verification for barnard.edu

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