Odoo Outlook integeration there is a flaw. it takes current date to register the entry at Odoo calander than the original email date from Outlook. Means if we ctreate an email with Outlook yesterday and passing the info by clicking button available against lead/accounts today, this email will registered at Odoo as on today's date.
Think it is not passing the original email date back to Odoo, instead takes current date as default. The result is the same email have different dates in Oitlook and Odoo