Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
casystem.com.mx
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 17:10:49 UTC · ↺ Refresh
MX Hostnames
- casystem-com-mx.mail.protection.outlook.com
MX Priorities
- casystem-com-mx.mail.protection.outlook.com: 0
A / AAAA Records
- 199.60.103.11 (no PTR)
Mail Server IPs
- 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
- 52.101.50.10 ↩ mail-mw2pr02cu00502.inbound.protection.outlook.com
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
- 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
- 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c902::2 ↩ mail-sj0pr03cu01602.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.mydyndns.org zone-admin.dyndns.com 2021031942 10800 1800 604800 1800
Primary NS (mname)
ns1.mydyndns.org
Admin Email (rname)
zone-admin@dyndns.com
Serial
2021031942
Refresh
10800s
Retry
1800s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ns3132.dns.dyn.com
ns1184.dns.dyn.com
ns2144.dns.dyn.com
ns4158.dns.dyn.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:46323510.spf10.hubspotemail.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; adkim=s; aspf=s; pct=25; rf=afrf; ri=3600; sp=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
⚠ Policy applies to 25% of failing messages only
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- google-site-verification=Jkvo7rAxVW51-JsTcwm45jDrl_J5j8Q7Mu0rik_Dcjw
- MS=ms21568213
- google-site-verification=BoYuHqvi9EjwQ1bylgeHWk7Gg-yxM91IjZtR5786bXU
- SPFv=spf1 include:spf.protection.outlook.com include:46323510.spf10.hubspotemail.net -all
- MS=ms38838812
- rn18pu297g7sfv8j90k8bhe0ao
- MS=ms56396293
Full email verification for casystem.com.mx
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