tcboe.org

Valid Email Server
Domain Lookup › tcboe.org

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
tcboe.org
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-29 18:53:32 UTC · ↺ Refresh

MX Hostnames

  • ASPMX.L.GOOGLE.COM
  • ALT2.ASPMX.L.GOOGLE.COM
  • ALT1.ASPMX.L.GOOGLE.COM
  • ASPMX3.GOOGLEMAIL.COM
  • ASPMX2.GOOGLEMAIL.COM

MX Priorities

  • aspmx.l.google.com: 1
  • aspmx2.googlemail.com: 10
  • aspmx3.googlemail.com: 10
  • alt2.aspmx.l.google.com: 5
  • alt1.aspmx.l.google.com: 5

A / AAAA Records

  • 104.17.71.73

Mail Server IPs

  • 142.251.179.27 ↩ pd-in-f27.1e100.net
  • 2607:f8b0:4004:c17::1b ↩ bl-in-f27.1e100.net
  • 108.177.123.26 ↩ lcscld-in-f26.1e100.net
  • 2800:3f0:4003:c0f::1b (no PTR)
  • 172.253.116.27 ↩ dj-in-f27.1e100.net
  • 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
  • 172.253.116.26 ↩ dj-in-f26.1e100.net
  • 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1a (no PTR)

SOA Record

Raw SOA asnsvr.asc.edu phduggan.asnmail.asc.edu 2025103100 360 300 604800 600
Primary NS (mname)
asnsvr.asc.edu
Admin Email (rname)
phduggan@asnmail.asc.edu
Serial
2025103100
Refresh
360s
Retry
300s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns1.asc.edu
asnsvr.asc.edu
ns2.asc.edu
asnsvr2.asc.edu
ns3.asc.edu

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:emailus.freshservice.com include:gaggle.net include:_spf.bbnotify.net include:_spf.google.com ip4:23.21.109.197 ip4:23.21.109.212 ip4:147.160.167.0/26 ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 3 found
google._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 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

7 records
  • Security code: <<87a-v63-vbn>>
  • MS=59E50683686A3527F08F01867DDE218EF0087F57
  • DMARCv=DMARC1; p=none
  • SPFv=spf1 include:spf.protection.outlook.com include:emailus.freshservice.com include:gaggle.net include:_spf.bbnotify.net include:_spf.google.com ip4:23.21.109.197 ip4:23.21.109.212 ip4:147.160.167.0/26 ~all
  • apple-domain-verification=1LMC6dLfweZaeQGQ
  • adobe-idp-site-verification=9aaee159f4dc38fb50079a57c3e0ed55e7e24893505958b6b16bc7969369dda9
  • google-site-verification=Phf2bX2izU-yp07GmtjjYE5n18rRlNstMM-lTBzz5k4
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