How to Fix Yahoo Mail Error 999

How to Fix Yahoo Mail Error 999

Yahoo Mail is a great service for conversation and data sharing. This not only allows you to receive and send an email but also tells the messenger, personal calendar organizer, schedule, etc. Since this application has a simple and clean interface, it is very easy to access all types of emails from users. Despite its so much advanced server, Yahoo Mail user is facing issues like Yahoo Mail Error 999 which looks like this below:

Unable to process request at this point – Error 999 Unfortunately, we are unable to process your request at this time.

Read:- How to Fix Yahoo Temporary Error 19?

Now the main topic that comes to mind is that what is yahoo error code 999? And why is this happening to you? And, how to solve it? Well, this is often a short term mistake due to technical constraints or security concerns. This temporary error indicates that your Yahoo Mail account has been blocked for short access.

Reasons for Yahoo Mail Error 999

  • Giving web gateways to other people may also be the main cause of the error. Due to unstable or poor Internet connectivity, this will prevent you from using Yahoo properly.
  • Second, if the browser is not authorized to accept only cookies from Yahoo.
  • Receiving or sending large amounts of email can cause this problem and you are unable to send or receive emails on Yahoo.
  • Just make sure that you are not working with any third party software or application to use Yahoo, otherwise you will be blocked by Yahoo for a selected period.
  • Spyware or viruses that will change system settings will prevent you from accessing certain websites.
  • Advanced action from an IP address for your computer, mobile device, or specifically Yahoo pages is one of the main reasons to receive this particular error code.

5 Way to Fix Yahoo Mail Error 999

Step 1: If you are using a “dial-up modem”, disconnect and reconnect to the web for a short time.

Additionally, by disabling the proxy server, this workaround also works because the dynamic IP address is generated on each connection instance.

Step 2: When using a proxy server, try turning it off and then powering it on.

This method is very efficient and can fix the error “Yahoo Mail cannot process the request at this stage, error 999”. Since Yahoo notifies the IP address to track traffic originating from the required address, disabling the proxy server will help to obtain and use the new IP address on subsequent connections to access the Yahoo mailbox.

Step 3: Check different devices

Sometimes your device does not support a Yahoo mail account. In these situations, we suggested using different tools to eliminate the difficulty. You will download and install the Yahoo app on the cooperative device. Now log in with your Yahoo credentials and check if Yahoo Mail Error 999 exists. Otherwise, consider that there is something wrong with your old device. But just in case the code is still running, proceed to the next step as a quote below, if not, you can contact Yahoo Customer Service through the Yahoo Helpdesk.

Step 4: Enable JavaScript

You might also like it. To move to this step, you want to work on the Tools menu. Then, go to the web selections and click on it. Then click on it and choose the Protection tab. Then choose the option “Custom Level” and proceed to the next step. Using the pointer, scroll down and change the active script setting to your liking. Then press confirm and save the changes. Finally, exit the web options. Through this process, you will gladly activate the JavaScript option.

Step 5: You will sign in to Yahoo before activating the server for a different country.

This is not the most defined method, as its operation receives an additional error message that states, “Unfortunately, there may also be a server interruption preventing access to the current page. You are going to change your server which will solve your problem.


Surely you will be ready to solve Yahoo Mail Error 999 topics using the steps mentioned above. But, in any case, if you have any problem, seek the help of an expert from the Yahoo helpdesk number. Apart from this, you will also give your valuable feedback in the comment box below.