The email platform deployed and offered by Yahoo is being used by millions of users on a day to day basis as per their own customized and personalized manner – be it the platform or the device that they are using to launch their email application. Keeping this in mind, there are plenty of issues which customers complain of – be it accessibility issues, operational issues in their account or security related issues which customers face while accessing their account. All these errors reported by customers are logged by the Yahoo Customer Support team and based on the frequency of the occurrence of the issues; they are appropriately coded so as to enable better tracking of the issue. These issues are then assigned to specific support teams so that they can muster on the issue and instantly help customers trouble shoot them and continue their operations.
The Yahoo mail error code 475 is related to any suspicious activity which has been detected on the Yahoo account. This is one of the error codes which are related to security breaches and concerns where in a customer account has been referred to by any unauthorized intruder. The Yahoo Technical Support system has automated protocols in place which monitors the log in activities of the email account on a day to day basis. As soon as it encounters any activities on email account which seem suspicious, an intimation mail is immediately sent to the registered email address requesting him to take preventive or corrective measures to prevent the same. In case of any security breaches which have been identified in user accounts, the first step for users is to immediately change the account password. Users can identify such errors in a few ways, a couple of them are mentioned below:-

a) The first and the most direct way to identify any sort of issues is to check the mails which are sent from the account i.e. the sent items folder. In case of any unintended spams being sent from the mail account, it is evident that the account has been mail-used by some one

b) Secondly, customers are always encouraged to check their account feeds which contain in depth information on all the log in activities including the date & time of log in, the location as well as the IP address used to log in to the account

This information is critical for identifying any potential threat to the account for which customers is free to call the technical support team of Yahoo.