1 For an error indicating that the username and password do not match, ensure that you enter the full email address in the format:
2 For an error indicating that the user does not exist, ensure that you have entered the correct username. You can also contact a postmaster to ensure that your account has not been disabled or deleted.
3 For the error 209, ensure that you log on to the correct site or enter the correct account. This issue may occur when you log on to Alibaba Mail using a free account.
4 If the issue persists, you can access https://account.alibabacloud.com/ and log on as an administrator to open a ticket with the snapshot and URL of the error page.
If you do not have an administrator account, you can contact the Alibaba Cloud service center by calling 95187.