dser.de

Valid Email Server
Domain Lookup › dser.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
dser.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-03 18:26:10 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 185.10.38.115 (no PTR)

Mail Server IPs

  • 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
  • 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
  • 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com

SOA Record

Raw SOA ns.ui-global-dns.de hostmaster.1und1.com 2017060443 28800 7200 604800 600
Primary NS (mname)
ns.ui-global-dns.de
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060443
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns.ui-global-dns.org
ns.ui-global-dns.de
ns.ui-global-dns.biz
ns.ui-global-dns.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:amazonses.com include:spf.crsend.com include:_spf.perfora.net include:_spf.kundenserver.de include:spf.easybill-mail.de include:spf.protection.outlook.com ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate 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

4 records
  • MS=ms12515210
  • FjpNhPGYy67NpllRE3EMWZuUNNm30sHQEI2qsJImp5E=
  • atlassian-domain-verification=DU6taTThYCbdiwWaLXwOC4oJwlNtIVEvIoRKiaiZU95O3viagrkggiCUDg7bjXbh
  • SPFv=spf1 include:amazonses.com include:spf.crsend.com include:_spf.perfora.net include:_spf.kundenserver.de include:spf.easybill-mail.de include:spf.protection.outlook.com ~all
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