leer.de

Valid Email Server
Domain Lookup › leer.de

Domain Overview

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

Checked via [email protected] · 2026-03-27 09:24:31 UTC · ↺ Refresh

MX Hostnames

  • smail-sle-mta1.dts-security.de
  • smail-sle.dts-security.de

MX Priorities

  • smail-sle-mta1.dts-security.de: 20
  • smail-sle.dts-security.de: 10

A / AAAA Records

  • 213.178.85.21 ↩ 85-21.advantic.de

Mail Server IPs

  • 212.101.206.72 ↩ smail-sle-mta1.dts-security.de
  • 84.201.116.104 ↩ smail-sle.dts-security.de

SOA Record

Raw SOA ns1.advantic.net admin.leer.de 2026032703 14400 7200 604800 86400
Primary NS (mname)
ns1.advantic.net
Admin Email (rname)
admin@leer.de
Serial
2026032703
Refresh
14400s
Retry
7200s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

ns2.advantic.net
ns1.advantic.net

SPF Record

✓ Strict (-all)
v=spf1 a:ferienprogramm-online.de ip4:80.228.54.224/28 ip4:195.37.198.224/28 include:spf1.dts-security.de include:mail.advantic.de include:spf.itebo.de include:agenturserver.de -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; adkim=r; aspf=r; pct=100; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

4 records
  • duo_sso_verification=E6q6Zm3pmlsJy9aydiGnOgoP2v33RANK3U6LNGSh14VfcpvB2cdBmVmGWwsYmCXh
  • MS=06D0F3C22C74D8220CB291D9D05AB982C024C16C
  • apple-domain-verification=ndONT1RJVvKYWbVo
  • SPFv=spf1 a:ferienprogramm-online.de ip4:80.228.54.224/28 ip4:195.37.198.224/28 include:spf1.dts-security.de include:mail.advantic.de include:spf.itebo.de include:agenturserver.de -all
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