Exchange

Prevent spoofing of your mail domains with DKIM and DMARC – Part 2

Office 365 uses the tenant domain to manage the DKIM signing. So that is the unique onmicrosoft. com domain that each tenant chooses at signup. DKIM is enabled by default on .onmicrosoft.com but not, of course, for the custom domains. … Read More

Prevent spoofing of your mail domains with DKIM and DMARC – Part 1

Spam and phishing emails are for sure one of the most hated and annoying attack an organization is facing nowadays: you will be very surprise if you know that 1 out of 25 branded emails (means from well-know brands like … Read More

SharePoint 2019 has released.. and also Exchange 2019

Following the release of Office client 2019 in September, Microsoft announces today that SharePoint Server 2019 RTM has reached General Availability. You can download SharePoint Server 2019 RTM from: SharePoint Server 2019 (Full Installers) Language Packs for SharePoint Server 2019 … Read More

Exchange Hybrid Configuration Wizard Fails To Update Address Policy

During our Exchange remediation tasks to migrate one of our customer from Exchange 2010 to Office 365 via hybrid, we found they had a previous from Exchange 2003 organization upgrade to the actual Exchange 2010: These legacy environment became apparent … Read More