Handling Migrations – StalledDueToTarget_MdbFull
When an administrator provisions a migration batch to Office 365 and adds users, objects known as migration users are created, which you can view using Get-MigrationUser. When migration users and the...
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Office 365: Users have both a cloud and on premises mailbox.
In Office 365 our provisioning logic generally prevents the existence of a mailbox on premises and in the service. You can imagine the confusion of cloud messages delivering to a mailbox in the cloud...
View ArticleOffice 365: Fatal error RecipientNotFoundPermanentException has occurred
In Office 365 administrators may experience almost immediate failures of migrations to Office 365. The error is typically in the following format: Error: Cannot find a recipient that has mailbox...
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Office 365: Converting a remote mailbox to a mail user…
In Office 365 it may become necessary to change recipient types for on premises accounts. In this scenario contoso.com provided a mailbox within their Office 365 tenant for a user. A decision was...
View ArticleOffice 365: Disabling password synchronization and password remnants…
A feature of directory synchronization (Azure AD Connect) is the ability to synchronize on premises Active Directory passwords to Azure Active Directory for the purposes of signing on using a single...
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Office 365: Upgrading legacy distribution lists to Office 365 Groups
Office 365 groups are the recommended replacement for legacy distribution groups in Office 365. You can learn more about Office 365 groups at the following link:...
View ArticleExchange, Cluster, and Network Thresholds
Cluster failures due to transient cluster communications problems can often lead to databases failing over between nodes or nodes being removed from cluster membership. For many administrators the...
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Office 365: Who can receive the weekly digest email…
In Office 365 we provide administrators the ability to access important information about the service via the message center. At https://portal.office.com on the main administration page the message...
View ArticleOffice 365: DNS health checks and the Office 365 Portal
In recent weeks I have worked on several escalations regarding the DNS health checks in the Office 365 portal. In August I published some guidance on how to review and handle these errors. That...
View ArticleOffice 365: Messages from external senders are originating directly on Office...
Today I had an interesting case come across my desk. A customer wanted to enforce that all external messages came through their third party cloud gateway. In an effort to prevent bypassing the...
View ArticleOffice 365: Bulk enabling auditing on Exchange Online Mailboxes
Auditing of mailbox operations are not enabled by default in Exchange Online. It is the responsibility of the administrator to choose which mailboxes should have auditing enabled and then subsequently...
View ArticleOffice 365: Mail flow delays through third party SPAM gateways…
This week I had a customer present with an interesting issue. They have a partner company they work with that users a third party spam filtering gateway prior to allowing mail into their on premises...
View ArticleOffice 365: Create a report of distribution group usage…
Occasionally we receive customer requests for generation of report data. Today I received a request where the customer wanted to generate a report of distribution list utilization. In essence they...
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Office 365: Domain verification by email validation…
In Office 365 domain verification was traditionally only available through DNS record validation. When adding a domain to Office 365 a domain verification text record or mx record was provided. This...
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Office 365: Enabling and creating a distribution list for first release users.
I had a customer present an inquiry to us on the management and communication of release release settings and changes. The customers goal was to: Manage first release settings through PowerShell to...
View ArticleOffice 365: Organization Queue Quota Exceeded
In Office 365 there are several throttling limits that administrators may encounter that impact mail flow. One of these throttling limits is Organization Queue Quota Exceeded. When organizations...
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Office 365: Office 365 Groups and domain removals…
When customers desire to move a domain from one tenant to another or decommission a domain within a tenant all dependencies on that domain must be removed. The domain removal process relies on the...
View ArticleOffice 365: ADConnect synchronization interval changed automatically…
In Azure AD Connect, the default synchronization interval is set to 30 minutes during installation. In the majority of cases, 30 minutes is an appropriate balance between getting changes to Office 365...
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Office 365: Office 365 Groups and External / Guest Accounts
In support you often have interesting cases come across your desk – and sometimes the questions and situations presented are odd. On occasion you look at some of them and are like that’s...
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Office 365: Troubleshooting distribution lists and distribution list membership…
In Office 365 administrators may discover issues with distribution lists and distribution list membership. In this article I wanted to walk through some of the common issues that I have seen and how...
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