Outlook 2016 - Storing Email Offline
This article lists external links to learn about storing email offline in Outlook 2016 for Windows.
In a Microsoft Exchange Server account, you can decide how much mail is available when working offline with a slow or no network connection:
Change how much mail to keep offline
- Email messages, calendar, tasks, and other items are saved on a mail server, on your computer, or both. Outlook items that are saved on your computer, are kept in an Outlook Data File (.pst and .ost):
Introduction to Outlook Data Files (.pst and .ost)
When your online mailbox is near your storage quota, you could move some items at an Outlook Data File (.pst).
Older messages and items that you don’t use regularly can be archived to an Outlook Data File (.pst):
Create an Outlook Data File (.pst) to save your information
An Outlook Data File (.pst) contains your backed-up email messages, calendars, contacts, tasks, and notes, and can be stored in one of default locations:
Locating the Outlook data files
You can move old items you want to keep to an archive, a separate Outlook Data File (.pst) that you can open from Outlook any time you need it.
Archive older items manually in Outlook for Windows
Archive older items automatically