colegiomontfort.edu.mx

Valid Email Server
Domain Lookup › colegiomontfort.edu.mx

Domain Overview

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

Checked via [email protected] · 2026-03-28 08:24:22 UTC · ↺ Refresh

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MX Hostnames

  • ALT2.ASPMX.L.GOOGLE.COM
  • ALT1.ASPMX.L.GOOGLE.COM
  • ASPMX3.GOOGLEMAIL.COM
  • ASPMX4.GOOGLEMAIL.COM
  • ASPMX.L.GOOGLE.COM
  • ASPMX5.GOOGLEMAIL.COM

MX Priorities

  • aspmx4.googlemail.com: 20
  • alt1.aspmx.l.google.com: 15
  • aspmx5.googlemail.com: 20
  • aspmx.l.google.com: 10
  • aspmx3.googlemail.com: 20
  • alt2.aspmx.l.google.com: 15

A / AAAA Records

  • 201.46.85.24

Mail Server IPs

  • 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
  • 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1b (no PTR)
  • 173.194.76.26 ↩ ws-in-f26.1e100.net
  • 2a00:1450:400c:c00::1b ↩ ws-in-x1b.1e100.net
  • 64.233.180.27 ↩ on-in-f27.1e100.net
  • 2607:f8b0:4004:c07::1a ↩ bc-in-f26.1e100.net
  • 172.253.116.27 ↩ dj-in-f27.1e100.net
  • 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net

SOA Record

Raw SOA ns1.cdmon.net hostmaster.colegiomontfort.edu.mx 1 10800 3600 604800 3600
Primary NS (mname)
ns1.cdmon.net
Admin Email (rname)
hostmaster@colegiomontfort.edu.mx
Serial
1
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns2.cdmon.net
ns5.cdmondns-01.com
ns1.cdmon.net
ns3.cdmon.net
ns4.cdmondns-01.org

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.google.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; pct=5; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 5% of failing messages only

DKIM Selectors

✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
✓ Public key: 10 chars (valid)
⚠ Public key too short (10 chars) — DKIM may be invalid.

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

All TXT Records

4 records
  • DMARCv=DMARC1; p=quarantine; pct=5; rua=mailto:[email protected]
  • SPFv=spf1 include:_spf.google.com ~all
  • DKIMv=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAykgrZv0aC/SeoiXT3qGwnmpGyZlfiwkxKsTNlP0JQCey6b9FKGaUb/1EYHrnU1cgJk31/z9XV0L2hRR+qwDD2w2XSpr6P/x0iTizHLpEcZYmO+E8Sj4qfMDe1PFo/pExF0WAzuu8XG+qwnZipJVjw3DcLIzIwWqhSACtCdqqgz+20HyiM5zHKeRPqHCVAtsIvirXFiKeGLQ20KsxNgPg4csdnKHQtFwpPMll0gBxCv9Saoh+bHnITBZmZ8ewRpF1Pa4xTOttDvEHp/Vqq1CI7X1+kUeDYewGlT7IqahDQ2hL50Z4wShW9HfCU8QXPJs5kDj0URhXo18WmuFWQAnUGwIDAQAB
  • google-site-verification=nUgH52XsQWSt70swuKFIxbDC6XDX70midDSyC2BbDn8
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