On November 1, Microsoft will limit auto-expanding archives to 1.5 TB and bring the era of “bottomless archiving” to an end. The new limit might not affect many Exchange Online tenants, but it’s a wake-up call for administrators to check how archiving is used in their tenants. To help the process, we’ve written a PowerShell script to report the current set of user and shared mailboxes with archives.
From November 1, 2021, Microsoft requires Outlook 2013 Service Pack 1 (with fixes) as the minimum client version to connect to Exchange Online. Given all the publicity about attacks against the on-premises version of Exchange earlier this year, it’s a wonder why organizations continue to allow people to use outdated client software to connect to Exchange Online. In any case, the drop-dead date is November 1. If you have any old Outlook 2007, Outlook 2010, or Outlook 2013 (before SP1) clients, it’s time to start upgrading.
Azure B2B guest accounts are often created during a Merger & Acquisition, so teams from both organizations can easily collaborate during the business and technology integration. However, these external users with B2B Guest accounts in their directory will eventually need to be migrated, which is problematic since B2B Guest accounts aren’t recognized as being licensed. The guest account can be removed and a new one created, but previous permissions would be lost. So how do we preserve permissions, keep collaborating without managing two sets of credentials while preparing the user account for data migrations? This article walks you through a solution that can be used in certain situations to help you easily manage the account to meet your needs.
Microsoft Certified Master (MCM) and Microsoft Certified Solutions Master (MCSM) Ingo Gegenwarth provides a glimpse into his speaking session at TEC and how to manage ExO at scale with PowerShell.
Microsoft has announced their intention to enable plus addressing across Exchange Online in January 2022. Plus addressing is a good capability, but it might cause some problems for tenants with mail-enabled recipients that have plus addresses in their set of proxy email addresses. Fortunately, we’ve written some PowerShell code to report those pesky addresses and to remove them if you want to do a big clean up before Microsoft makes the big switch in five months’ time.