Logging in external page

Hello, 

I'm logging and redirecting a user to an external page using this procedure:

<form action="http://www.outlook.com" method="post" name="form" id="form"><input type="text" name="username" size="15" value="admin"/><input type="password" name="password" size="15" value="admin" /><input type="submit" name="Submit" value="Login" /></form>

This code works but it is not sure at all, how can I improve the security, implementing SSL would fix it?

Thanks in advance.