ismark.com.mx

Valid Email Server
Domain Lookup › ismark.com.mx

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
ismark.com.mx
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-01 21:02:34 UTC · ↺ Refresh

MX Hostnames

  • ismark-com-mx.mail.protection.outlook.com

MX Priorities

  • ismark-com-mx.mail.protection.outlook.com: 1

A / AAAA Records

  • 104.21.34.154 (no PTR)
  • 172.67.205.231 (no PTR)
  • 2606:4700:3031::ac43:cde7
  • 2606:4700:3036::6815:229a

Mail Server IPs

  • 52.101.41.54 ↩ mail-sj2pr05cu00506.inbound.protection.outlook.com
  • 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
  • 52.101.40.6 ↩ mail-cy1pr03cu00106.inbound.protection.outlook.com
  • 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
  • 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
  • 2a01:111:f403:c931:: ↩ mail-sn1pr02cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA jack.ns.cloudflare.com dns.cloudflare.com 2398541597 10000 2400 604800 1800
Primary NS (mname)
jack.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398541597
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

jack.ns.cloudflare.com
roxy.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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

2 records
  • MS=ms28924177
  • SPFv=spf1 include:spf.protection.outlook.com -all
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