Instead of using two different data files one for IMAP email and one for calendar and contacts. Outlook uses an OST file for IMAP account and stores appointments, tasks, contacts, and notes in the IMAP data file, in the folder (This computer only). Reasons Behind the Occurrence of Outlook IMAP (This Computer Only) Issue There is any solution using which I can eliminate this issue?” But there are no “Sent Items” or “Deleted Items” options. I tried to set the account settings for my IMAP account.
The most confusing part was that they are saved to a Sent Items folder but are saved into Sent Items (This Computer Only). “Today I configured Outlook with an IMAP account and noticed that my Sent Items are not being saved to the mail server.