Issue Description: Outlook performance issues with folders in secondary mailbox.
Latest Update and Guidance: Performance issues may be noticed with folders in secondary Microsoft Exchange Server mailboxes in Outlook 2016, 2013, 2010 and 2007 versions. New items may not appear or seem missing in secondary mailbox, deleted items may still appear in secondary mailbox or Outlook keeps crashing erratically. To solve these issues, please follow the guidance available in the Microsoft KB article.
| Last Reviewed Date | 13/10/2021 |
