Archiving emails When archiving emails, those emails are moved to the Archive folder. The Archive folder contains a separate sub-folder for each calendar year. The archived emails are saved to those sub-folders sorted by the year of receipt. The Archive folder is created as soon as you initially use this function. The following options exist: archive a folder's emails that are older than 90 days archive single emails How to archive an email folder's content: Select an email folder in the folder view. You have the following options: Click on All above the list. Select Archive all messages. Click the Actions icon next to the folder name. Click on Archive all messages. In the Archive messages window click on Archive. How to archive single emails: Select one or several emails. Click the Archive icon in the toolbar. You can also use one of the following methods: Press the [a] key on the keyboard. Use the context menu in the email list.