Read this and I am sure that most of you would leave GMAil like me and this news is directly from google-
Am I receiving someone else's email?
Gmail doesn't recognize dots (.) as characters within a username. This way, you can add and remove dots to your username for desired address variations. messages sent to
your.username@gmail.com and
y.o.u.r.u.s.e.r.n.a.m.e@gmail.com are delivered to the same inbox, since the characters in the username are the same. Keep in mind that hyphens (-) and underscores (_) can't be used in a Gmail address. Also, usernames are case insensitive, so it doesn't matter if you enter upper case or lower case letters.
If you created your account with a dot in your username and you wish you hadn't, you can change your 'Reply-to address.' To change your reply-to address:
- Click 'Settings' at the top of any Gmail page.
- Enter your username@gmail.com without a dot in the 'Reply-to address' field.
- Click 'Save Changes.'
When you log in to Gmail, you need to enter any dots that were originally defined as part of your username. Note: Google Apps for Your Domain does recognize dots. If you'd like to receive mail with a dot (.) in your username, please ask your domain administrator to add the desired username as a nickname in your user account.
source-
*mail.google.com/support/bin/answer.py?ctx=%67mail&hl=en&answer=10313