If your account uses Exchange ActiveSync or POP3, please ask your administrator if it’s possible to change the protocol. Alternatively, you can check if your account supports EWS by following these instructions. You can contact the IT administrator at your organization to ask what protocol is used for your Exchange account. Spark doesn’t support Exchange ActiveSync and POP3 protocols. Make sure your account supports IMAP/SMTP or EWS protocol If you’re experiencing issues adding an Exchange or Office 365 account to Spark, please follow these steps.
Can I Change Advanced Settings For a Custom Account?.How Can I Remove an Email Account From Spark?.Connect Other Productivity Apps to Spark.
