Yahoo Mail has gone through yet another transformation. Just half a year after it allowed users to send up to 100 MB of attachments, it has now increased the mail limit to a whopping 1 terabyte or 1,000 GB.

As David McDowell, Senior Director of Product Management for Yahoo Mail, told Business Today in a telephonic interaction from the US, "that will take an average user 6,000 years to use up. It is more than what anyone would ever need."

This 1TB of storage will complement the 1TB of storage space available on Flickr, Yahoo's photo and video hosting service. Yahoo has made all premium features of its mail - like the extra storage, disposable email addresses and free mail forwarding - free for all users. New Mail Plus users will now have to pay $49.99 per year, for what will be reduced to an add-free experience only. Earlier users will continue to get this for $19.99 per year.

"We see this as providing more benefits to free users. The premium users are just a relatively small number," explained McDowell.