

This Microsoft Knowledge Base article describes how to create profile and set up an e-mail account in Outlook. Instead, create separate Outlook profiles, and then configure the Google Apps Sync for Outlook account in one profile and the Exchange Server account in another profile. Resolutionĭon't configure an Exchange Server account and a Google Apps Sync for Outlook account in the same Outlook profile. This issue occurs when a Google Apps Sync for Outlook account and an Exchange Server account are configured in the same Outlook profile. If the problem persists, restart Outlook.

The messaging interfaces have returned an unknown error. When you send email messages in Microsoft Outlook, you receive the following error message: Applies to: Outlook 2016, Outlook 2013, Microsoft Outlook 2010, Outlook for Office 365, Outlook 2019.The operation failed error when you send email messages in Outlook
