When "purge on switch" is enabled, IMAP e-mail messages marked for deletion in the current folder will be permanently removed from the server when the user switches to another folder. This setting will allow you to enable the IMAP "purge on switch" feature.
Registry Hive | HKEY_CURRENT_USER |
Registry Path | software\policies\microsoft\office\15.0\outlook\options\mail |
Value Name | enablepurgeonswitch |
Value Type | REG_DWORD |
Enabled Value | 1 |
Disabled Value | 0 |