jeschenko.de

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
jeschenko.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-26 15:34:33 UTC · ↺ Refresh

MX Hostnames

  • jeschenko-de.mail.protection.outlook.com

MX Priorities

  • jeschenko-de.mail.protection.outlook.com: 0

A / AAAA Records

  • 212.132.124.101 ↩ ip212-132-124-101.pbiaas.com

Mail Server IPs

  • 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.domaindiscount24.net tech.key-systems.net 2025111108 10800 3600 604800 28800
Primary NS (mname)
ns1.domaindiscount24.net
Admin Email (rname)
tech@key-systems.net
Serial
2025111108
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
28800s

Nameservers (NS)

ns2.domaindiscount24.net
ns1.domaindiscount24.net
ns3.domaindiscount24.net

SPF Record

✓ Strict (-all)
v=spf1 a ip4:192.0.2.100/31 include:cemsc.net include:_spf.zimpel.de include:spf.protection.outlook.com include:_spf_eucentral1.prod.hydra.sophos.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1;p=reject;sp=reject;pct=100;ri=86400;aspf=s;fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Strict · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: reject

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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

1 record
  • SPFv=spf1 a ip4:192.0.2.100/31 include:cemsc.net include:_spf.zimpel.de include:spf.protection.outlook.com include:_spf_eucentral1.prod.hydra.sophos.com -all
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