The other when migrating a mailbox from an on-prem Exchange 2013 environment to Exchange Online, I was faced with a RecipientNotFoundPermane...

The other day during a mailbox migration of an on-prem Exchange 2013 mailbox to Exchange Online, I came across the following error: Error:...

When migrating mailboxes to Exchange Online in a Hybrid environment, you might encounter the following error: PS C:\> Get-MigrationUser ...

For a few years now, Microsoft has provided pretty much the same types of migration for organizations to use to migrate email data to Excha...

A common task amongst many Exchange administrators around the world is moving users’ mailboxes between databases. This could be to move the...

The other day I was trying to move a 5 MB mailbox from one server to another (both running Exchange 2013) when I noticed the move request w...

During a recent transition from Exchange 2010 to 2013, a user’s mailbox failed to get migrated: [PS] C:\>Get-MoveRequestStatisti...

Whenever administrators migrate mailboxes to Exchange Online, an onboarding limit in terms of message size always apply in order to avoid m...

Consider the following scenario: Your on-premises Exchange organization includes mailboxes that are hosted in Exchange 2003; Your on-...

Office 365 IMAP Migration From Different Domain Often I get asked if it is possible to perform an IMAP Migration from an e-mail system th...

For BDMs and architects, this model describes the available platform options for Exchange 2013. Customers can choose from Exchange Online w...

Installing the first Exchange 2013 server in an organization that already has Exchange 2007 or 2010 might trigger all clients in the organi...

Free/busy information requests to an Exchange 2007 organization from an Exchange 2013 organization may fail due to a mismatch in the reques...

Some organizations implement ADFS and DirSync in order to take advantage of the Single Sign-On capabilities. However, not all of them opt f...

When transitioning from Exchange 2010 to 2013, you should be aware of the following in regarding to the eDiscovery feature during the coexi...

Now that Exchange 2007 SP3 RU10, Exchange 2010 SP3 and Exchange 2013 CU1 have been released, administrators can start deploying Exchange 20...

If you are transitioning from Exchange 2007/2010 to Exchange 2013, we will see that the reported size of the mailboxes will increase around...

After migrating thousands of mailboxes from Exchange 2007 to 2010, only recently came to my attention a bug in the whole process. Let’s...

As you know, as long as you have the proper permissions you can access another users’ mailbox using OWA. However, if you are in the midd...

If you are migrating from Exchange 2007 to Exchange 2010 and 2007 users are getting the following error when e-mailing 2010 users:    The ...