How much storage space do I have in Yahoo! Mail?
Users who follow the Yahoo! Terms of Service and who don't trigger our anti-abuse controls can use an unlimited amount of free email storage. You never need to delete another email, unless you want to.
Note: To avoid abuse of our unlimited storage, we do monitor accounts for excessive usage. Yahoo! limits the number and size of messages allowed from a mailbox within a given timeframe. While our goal is to ensure that everyone benefits from unlimited storage, Yahoo! Mail is not designed as a replacement for a mass email campaign solution.
If your account has had a lot of activity in a short period and you are experiencing email response issues, you may need to create new folders or move some emails to other folders.
Our storage policy is the same in all countries, but please note that the Yahoo! Terms of Service and privacy policies vary by country. Find information for other countries.