Event ID 12024 – Exchange Hybrid

  In a hybrid mode with Exchange 2010 and when trying to send emails to on premises users the email was not getting delivered.  No bouncebacks or errors, just no delivery. I checked out the connector from 365 to on premises and when validating the connector by setting an email address of an on premises … Continue reading Event ID 12024 – Exchange Hybrid

Free/Busy Exchange Online Hybrid

We have a hybrid Exchange setup with Exchange online.  On premises is Exchange 2016. Users who had been migrated to Exchange online could only see availability of other users and resources that were still on premises.  A check of the organization relationship showed the following; Run the below powershell on your on premises servers and … Continue reading Free/Busy Exchange Online Hybrid

Single Active Directory account not syncing to Azure AD

A single user in AD was not being synced to Azure AD via AAD Connect.  All other users were syncing just fine.  When looking at the account the attribute msExchRecipientTypeDetails was set to 2, which indicates a linked mailbox. We used to use linked mailboxes but stopped doing so quite some time ago.  Obviously this … Continue reading Single Active Directory account not syncing to Azure AD

SPN not found AAD Connect ADFS

During an install of AAD Connect I received an error saying that there wasn't an SPN set on the ADFS service account.  Upon checking the user account I could see it did have an SPN set of host/sts.example.com. Clicking retry on the ADFS install wizard got things going again and the install proceeded without any … Continue reading SPN not found AAD Connect ADFS