So what does "unlimited" mean, really?
Disk space:
You can now create as large a site as you like (you won't face an upper limit, or "ceiling"), but we will place some constraints on how fast you can grow. In other words, you can add as much content as you want, but maybe not all at once. The vast majority of our customers' sites grow at rates well within our rules, however, and will not be impacted by this constraint.
Data transfer:
In most cases, if you use our service appropriately, visitors to your web site will be able to download and view as much content from your site as they like. However, in certain circumstances, our server processing power, server memory, or anti-abuse controls could limit downloads from your site.
You can also upload as much as content as you like each month, subject only to the rules that control how fast your site can grow (see above).
Email storage:
Unlimited email storage gives normal email account users like yourself an opportunity to not have to worry about hitting a storage limit. You can save your correspondence and never worry about having to delete older messages to make room for more.
However, the purpose of unlimited storage isn't to provide an online storage warehouse. Usage that suggests this approach gets flagged by AT&T Yahoo! Business Email's anti-abuse controls.
