Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
demar.com.mx
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-31 04:46:51 UTC · ↺ Refresh
MX Hostnames
- demar-com-mx.mail.protection.outlook.com
MX Priorities
- demar-com-mx.mail.protection.outlook.com: 5
A / AAAA Records
- 100.21.194.204 ↩ ec2-100-21-194-204.us-west-2.compute.amazonaws.com
Mail Server IPs
- 52.101.41.28 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
- 52.101.11.9 ↩ mail-sn1pr02cu00101.inbound.protection.outlook.com
- 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
- 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
- 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com
- 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c946::1 ↩ mail-ch1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c901::1 ↩ mail-bl2pr04cu00201.inbound.protection.outlook.com
SOA Record
Raw SOA
ns2.no-ip.com hostmaster.no-ip.com 2011072865 10800 1800 604800 1800
Primary NS (mname)
ns2.no-ip.com
Admin Email (rname)
hostmaster@no-ip.com
Serial
2011072865
Refresh
10800s
Retry
1800s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ns2.no-ip.com
ns4.no-ip.com
ns5.no-ip.com
ns1.no-ip.com
ns3.no-ip.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf_uswest2.prod.hydra.sophos.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;rua=mailto:[email protected];sp=quarantine;aspf=r;adkim=r;ri=86400;pct=100;ruf=mailto:[email protected];fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 1 found
s1._domainkey
✓ Public key: 392 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- sophos-domain-verification=74e0431874d9600501ce8571bc5e1424bdcd484bdd2c7f8c74fb643004a64a36
- DMARCv=DMARC1;p=quarantine;rua=mailto:[email protected];sp=quarantine;aspf=r;adkim=r;ri=86400;pct=100;ruf=mailto:[email protected];fo=1
- selector1-demar-com-mx._domainkey.demar.onmicrosoft.com
- SPFv=spf1 include:spf.protection.outlook.com include:_spf_uswest2.prod.hydra.sophos.com -all
- selector2-demar-com-mx._domainkey.demar.onmicrosoft.com
- fv9mbn3g3ag51cjl0lba5lcj9
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