When Outlook is set up using an Exchange,, Office 365 or IMAP account, it creates an Offline OST file that allows you to access Outlook and make changes even when the system is.
This will free up space without having to delete messages.
If your IMAP mailbox is approaching the disk quota limit for your account or is full, you will need to free up some space by deleting large emails or you can archive old emails by moving them to an offline location on your computer.
I need to have syncWindowSetting to 12, to keep one year of email cached in the OST, however outlook seams to completely ignore these values, and sticks to one month only or allĪny ideas to get it working for only 1 year are welcomeĪ registry export of my outlook settings is below: Windows Registry Editor Version 5.00 Offline Folder or OST is an Outlook data file used to store a local synchronized copy of mailbox items, such as emails, contacts, attachments, calendars etc. How to Archive IMAP Emails in Outlook 2016 and earlier. I even added the Dword value Enable and set it to 1. One should be able to alter the period by policy or registry: HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\xx.0\Outlook\Cached ModeĬreate a DWORD value of SyncWindowSetting, and then set the desired value:ģ6 = 3 years of email items (Outlook 2016 only)Ħ0 = 5 years of email items (Outlook 2016 only) Problem: For unknown reasons it stays at 1 month or all time. Enable ‘Online‘ mode: If you choose to use this method, you will not be able to access your emails offline anymore.
Step 2: Click on the control panel, ensure the view by option is set in large icons. 3 3 months of email items 6 6 months of email items 12 12 months of email items 24 24 months of email items Note: The x.0 placeholder represents your version of Office (16.0 Office 2016, 15.0 Office 2013). Step 1: Click on the start menu, search for Control Panel. The Mail to keep offline slider in the Server Settings dialog box in Outlook 2016 has been updated to apply to shared folders and lets you set a smaller synchronization window, available by default with Cached Exchange Mode in Outlook 2016. Just follow the steps below for Outlook 2010/2013/2016.
Restart outlook, wait for some time until your emails are downloaded. One has the option mail to keep offline in the gui, to cache Email. If your Outlook starts Offline, building a new profile in Outlook 2010/2013/2016 may fix this. On Outlook 2016, Click File, Info, Account Settings, Account Settings On Account Settings window, Select Email Tab, select your accounts one by one, click change button, Check Use Cached Exchange mode, Move the Mail to keep offline slider to right end until it shows All.