Generally, we recommend this connection type for your EWS on private servers' email accounts. Otherwise, you can try the default single-click option and add your mailbox in a few seconds.
If you want to go with this option, follow these steps:
Go to the Email Accounts tab of your Settings.
Click the New email account button.
Choose the Exchange (on-premises) option and click Continue.
Paste your email address into the Email field.
Use your mailbox password in the Password field.
Next to the EWS Endpoint field, click on the Autodiscover button.
Test the connection and save the changes.
You can use the URL you see when logging in through a browser if the EWS endpoint is not discovered. Here is a Microsoft guide on how to get the link.
💡 If you use Office 365 but still want to connect your account via EWS, use the Single-click option:
Should you have any questions or concerns, our support team is available in chats.