seminarium.com

Valid Email Server
Domain Lookup › seminarium.com

Domain Overview

DNS: ✓ 20d ago Checker: ✓ 20d ago
seminarium.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 01:54:25 UTC · ↺ Refresh

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MX Hostnames

  • ALT2.ASPMX.L.GOOGLE.com
  • ALT3.ASPMX.L.GOOGLE.com
  • ALT4.ASPMX.L.GOOGLE.com
  • ALT1.ASPMX.L.GOOGLE.com
  • ASPMX.L.GOOGLE.com

MX Priorities

  • alt2.aspmx.l.google.com: 5
  • alt1.aspmx.l.google.com: 5
  • alt4.aspmx.l.google.com: 10
  • alt3.aspmx.l.google.com: 10
  • aspmx.l.google.com: 0

A / AAAA Records

  • 154.12.244.127

Mail Server IPs

  • 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)
  • 173.194.76.26 ↩ ws-in-f26.1e100.net
  • 2a00:1450:400c:c00::1b ↩ ws-in-x1b.1e100.net
  • 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
  • 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
  • 172.253.63.26 ↩ bi-in-f26.1e100.net
  • 2607:f8b0:4004:c1b::1b ↩ wv-in-f27.1e100.net

SOA Record

Raw SOA ns1.contabo.net server-admin.contabo.de 2026051301 3600 1800 1209600 86400
Primary NS (mname)
ns1.contabo.net
Admin Email (rname)
server-admin@contabo.de
Serial
2026051301
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns2.contabo.net
ns3.contabo.net
ns1.contabo.net

SPF Record

✓ Strict (-all)
v=spf1 ip4:154.12.244.127 ip4:190.96.78.156 include:_spf.google.com include:19524309.spf52.hubspotemail.net include:spf.fromdoppler.com include:certificacion.cl -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400;rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none

DKIM Selectors

✓ 2 found
google._domainkey
default._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

2 records
  • SPFv=spf1 ip4:154.12.244.127 ip4:190.96.78.156 include:_spf.google.com include:19524309.spf52.hubspotemail.net include:spf.fromdoppler.com include:certificacion.cl -all
  • google-site-verification=azX4LGSgCHhZuL5Umyy7a9k1P4P3JMeHEPIxuMEJyXo
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