classroom24-7.com

Valid Email Server
Domain Lookup › classroom24-7.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
classroom24-7.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-19 07:17:16 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 35.184.107.180 ↩ 180.107.184.35.bc.googleusercontent.com

Mail Server IPs

  • 172.253.116.27 ↩ dj-in-f27.1e100.net
  • 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
  • 108.177.123.26 ↩ lcscld-in-f26.1e100.net
  • 2800:3f0:4003:c0f::1a (no PTR)
  • 142.251.179.27 ↩ pd-in-f27.1e100.net
  • 2607:f8b0:4004:c23::1b ↩ yuiadrs-in-f27.1e100.net

SOA Record

Raw SOA ns1.linode.com dns.classroom24-7.com 2021000103 14400 14400 1209600 300
Primary NS (mname)
ns1.linode.com
Admin Email (rname)
dns@classroom24-7.com
Serial
2021000103
Refresh
14400s
Retry
14400s
Expire
1209600s
Minimum TTL
300s

Nameservers (NS)

ns2.linode.com
ns5.linode.com
ns1.linode.com
ns4.linode.com
ns3.linode.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.rvhanalytics.org include:_spf.google.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; sp=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; rf=afrf; pct=100; ri=86400;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject

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

4 records
  • google-site-verification=QIbD_ltsL4i3TZ42P6izgdZ5tRCZ-8okGf3xhPAuaxw
  • MS=ms31374474
  • 5qs7pd34vnjc2tbejuo4f64mmq
  • SPFv=spf1 include:_spf.rvhanalytics.org include:_spf.google.com ~all
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