Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cesar.school
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-24 15:24:16 UTC · ↺ Refresh
MX Hostnames
- aspmx.l.google.com
- alt1.aspmx.l.google.com
- aspmx2.googlemail.com
- aspmx3.googlemail.com
- alt2.aspmx.l.google.com
MX Priorities
- alt2.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
- aspmx2.googlemail.com: 10
- aspmx3.googlemail.com: 10
- alt1.aspmx.l.google.com: 5
A / AAAA Records
- 170.82.173.30 (no PTR)
Mail Server IPs
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2607:f8b0:4020:c07::1a ↩ lcyulk-in-f26.1e100.net
- 192.178.155.27 ↩ yuiadrs-in-f27.1e100.net
- 2607:f8b0:4004:c08::1b ↩ bi-in-f27.1e100.net
- 192.178.218.27 ↩ yuiadtq-in-f27.1e100.net
- 2607:f8b0:4004:c25::1b ↩ yuiadtq-in-f27.1e100.net
- 2607:f8b0:4020:c07::1b ↩ lcyulk-in-f27.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
SOA Record
Raw SOA
ns-1246.awsdns-27.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1246.awsdns-27.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-95.awsdns-11.com
ns-1246.awsdns-27.org
ns-1998.awsdns-57.co.uk
ns-734.awsdns-27.net
SPF Record
✓ Soft Fail (~all)
v=spf1 a ip4:34.237.103.171 include:_spf.google.com include:servers.mcsv.net include:_spf.salesforce.com include:_spf.rdstation.com.br include:sendgrid.net ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;adkim=s;aspf=s;rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- google-site-verification=djC0QwEJYRmq6sxxqaWw2mZ4fD3zuHHoZAwPkbnG4-8
- google-site-verification=nmFIV6ttoLCGIGZSkalQZdTGsz2SoZ1L91FC3yuRon0
- knowbe4-site-verification=0932f3f8c3526d08ae69ff60c9125ea8
- SPFv=spf1 a ip4:34.237.103.171 include:_spf.google.com include:servers.mcsv.net include:_spf.salesforce.com include:_spf.rdstation.com.br include:sendgrid.net ~all
- google-site-verification=4RRdzYRJiYl_i70Qn6LrxYIRoyq-dHhNdE_O-lVdycA
- google-site-verification=PJyDuqImOUAnT6k8EnVezY5ZTszNh2xGGrQLWnL2vy4
Full email verification for cesar.school
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