Are you getting mail that wasn`t sent to your address?, Does the other
person email address look like your but have diffrent numbers of
dots?,
this problem has been conclusively addressed users and google guide
alike.Read more about it here on the knol.
http://knol.google.com/k/lanny-m/getting-someone-elses-mail-the-dots/...
Here's a testimonial from a user who experienced this problem
Thank you for your attention and for taking the time to answer.
Yes I did receive your "test" e-mail, displaying my "alternative" e-
mail addresses.
I had already asked a friend to make a test like that and the outcome
was the same: positive!
Your test only adds more confidence in the whole process and I thank
you for that.
I guess I will have to rest assured and trust Gmail 100%... after all,
Gmail is the best!
Thank you very much.
All the best.