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kerstner.de

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First seen 2026-04-25 · Last seen 2026-05-18 · pending crawled 2026-05-18 4 attempts

FR · 46.18.213.18 · AS34235 Itinsell Cloud SAS

Reputation 94/100 dmarc monitor-only

http error: Error -3 while decompressing data: incorrect header check

Registration

Updated
2019-01-09
Name servers
  • docks13.rzone.de.
  • shades19.rzone.de.

DNS records live

NS
  • docks13.rzone.de
  • shades19.rzone.de
MX
  • 10 kerstner-de.mail.protection.outlook.com

Email authentication partial

SPF
v=spf1 a ip4:217.89.116.179 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:146836589.spf01.hubspotemail.net ~all
softfail (~all)
DMARC
v=DMARC1; p=none;
policy: none (monitoring only)
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3hbZNX6YWQZog8kDs6tCHVpT2DMn2Ljxma/p8Ofi/DJUoaHMS9lET6QkzLYFjXkNQdHGwDfMtH1/T7…
  • selector2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA5oyyspJRGbrrakK0NXaitKfmnwQgyN1OvphbsKh8MzuWMADT2R5KJlPHp2XDebDhEh05ExwfvpAeKV…
selectors probed

Certificate (current)

Sectigo Public Server Authentication CA DV R36
from 2025-07-31 to 2026-08-01
Expires in 72 days

Full certificate history on crt.sh ↗

Linked from (2)