![Performance and synchronization problems when you work with folders in a secondary mailbox in Outlook Performance and synchronization problems when you work with folders in a secondary mailbox in Outlook](https://support.content.office.net/en-us/media/5fa0e806-2ded-862e-2413-dc7f9c52fbfd.jpg)
Performance and synchronization problems when you work with folders in a secondary mailbox in Outlook
![The downside of being a filer and other reasons why Outlook's cached limits might bite you | ITPro Today: IT News, How-Tos, Trends, Case Studies, Career Tips, More The downside of being a filer and other reasons why Outlook's cached limits might bite you | ITPro Today: IT News, How-Tos, Trends, Case Studies, Career Tips, More](https://www.itprotoday.com/sites/itprotoday.com/files/styles/article_featured_retina/public/uploads/2016/03/outlookhabits_0.jpg?itok=qG6TRqnk)
The downside of being a filer and other reasons why Outlook's cached limits might bite you | ITPro Today: IT News, How-Tos, Trends, Case Studies, Career Tips, More
![Performance and synchronization problems when you work with folders in a secondary mailbox in Outlook Performance and synchronization problems when you work with folders in a secondary mailbox in Outlook](https://support.content.office.net/en-us/media/ad5cbb3e-a549-c615-a4f2-41cc23485543.jpg)