holtmann-mc.com

Registration

Registrar

Cronon GmbH

Created

2018-02-01

Expires

2027-02-01 240 days left

Updated

2026-02-02

Name servers

• docks02.rzone.de
• shades17.rzone.de

DNS records live

NS

• docks02.rzone.de
• shades17.rzone.de

MX

• 10 holtmannmc-com02b.mail.protection.outlook.com

Verified for

• Microsoft 365

Email authentication strong

SPF

v=spf1 include:spf.protection.outlook.com -all

strict (-all)

DMARC

v=DMARC1;p=reject;

policy: reject (enforced)

DKIM

• selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC2+apjBeyHOYgRJFLt3trcBintrHI6FAQFdj/+DXH+mEnX0bBtmnH1MiqpzI7XGHlXwVMnV7S/IHXKsdTiGU…

selectors probed

Linked from (1)

• internetgestalten.de×1