Here are a few ways by which you can access Gmail at places where is is blocked.

#1: Use different web addresses

Instead of using http://mail.google.com use https://mail.google.com

You can also try

#2: Configure your mail program to access Gmail (through POP)

If none of those sites are available the simplest solution might be to configure your mail program (Microsoft Outlook, etc) to connect to Gmail. Instructions can be found on Google’s Help Center.

#3: Access Gmail through Google Desktop

Another alternative is to download Google Desktop on to your PC. It will bypass proxies to access Gmail. Unfortunately, Google Desktop may also be banned at some workplaces.

#4: Use a web server with Gmail Lite installed

If you’re dead set on accessing your mail from the web you can try searching an application called “Gmail Lite”. This is an application you can install on your own web site.

Of course, most people don’t have their own web site. But if you keep searching through the results you’ll find websites that have Gmail Lite installed for anyone to use.

Make sure to bookmark the site for later.