t1. Check your email account settings to ensure that the drafts folder is set up correctly.
t2. Make sure the sent items folder is checked and synced correctly.
t3. Test the settings by sending out a test email and verify that it is saved in the drafts folder.
t4. If the issue still persists then check for any compatibility issues as some versions of Outlook do not support this feature.
t5. Check for any blocking settings or restrictions that may be in place in your current email account.
t6. If necessary contact your email provider for further assistance.