It's POP enabled and absolutely free.

But, it's really spam free. The spam guard works exceptionally well. None other than G-mail will provide you a free POP account with such spam guard. I've accounts at fastmail (Outlook supported), yahoo, msn (Outlook supported), operamail, dataone (my ISP provider). But, I'm really satisfied with my G-mail. It's really fast and well-maintained. As under Beta they aren't promising you the security of your account. But, it's evident that they are trying their best to provide you a secure account.

Don't find any security problem so far.

Source please. Can’t understand what you said.

Once you delete a message, it's gone for good.

If you really need to delete a message, you can do so at any time. Here's how:

1. First, move the message to 'Trash.' (You can still search for and retrieve messages in 'Trash.')
   Open a conversation. → Click 'Show options.' → Click 'Trash this message.'


2. Then, select 'Delete Forever.' (You won't be able to recover a message after completing this step.)
   Click 'Trash' along the left side of any Gmail page. → Select the message. → Click 'Delete Forever.'