Choose language
Mail and messaging
Check MX, SPF, DKIM, DMARC
Trace the delivery path
Build DNS, SMTP, LDAP commands
Reachability via HIN
Check a build, always current
Latest vulnerabilities, alerts
Electricity and energy
Run the numbers on an LEG
Entra ID, Entra Connect Sync, and hybrid identity between Active Directory and the cloud.
1 article
The security release brings Passkey support and changes to app authentication, PowerShell, and Password Hash Sync. The previous version was withdrawn, so the update requires a phased decision.
This website uses analytics to understand how it is used and to keep improving it. Collection is on by default: you can object to it here, or allow it again later.
Admin Hub
AI & Automation Hub
Off Topic
Where to?
If your organisation does not allow this, the same messages are available by email.
Public Telegram channel, no signup with rafaelpfister.ch.
Telegram, WhatsApp and RSS always contain all articles.
Public WhatsApp channel, no signup with rafaelpfister.ch.
Feed address for feed readers. In Teams you can also use Power Automate (template “Post a channel message when a new RSS feed is published”), in Slack /feed subscribe.
The webhook URL is stored encrypted and used only for these messages. Every message contains an unsubscribe link. Privacy
