Gmail has a very unique and cool feature with the usernames. Previously wrote an article “Gmail Bug With UserID” but after getting the response from users and my friends, I realized I made a mistake and the article was totally wrong. Gmail does not have a bug, rather it is a unique feature with its usernames. If you have an account firstname.lastname@example.org then email@example.com or firstname.lastname@example.org are referred to the same username.
After getting the response from my friends @skdev and @adeelahmad I tried emailing myself in different ways. I mailed myself with talal.masood @ gmail .com and also talalmas.ood @ gmail .com and other things. I received all the emails to my original id talalmasood. When I checked that email, right beside the TO: address I found a link to google help about this feature (Receiving Someone else email). This totally explained me the feature of this google’s dot thing the usernames.
[ad#ad-taalz-inpost-left]On the other hand Gmail also gives the + (plus sign) feature with username. If you have email@example.com you can also use firstname.lastname@example.org and all the emails to this address will be sent to your original email address that is email@example.com. With the help of this you can identify different emails. For instance I signup on many different forums of Anime Cartoons so while signing up with those forums I can use firstname.lastname@example.org, with that I can distinguish between different emails (kind of filter service). This thing can also prevent me from getting spam messages. For instance while signing up to some website, lets say abcd.com I used the email address as email@example.com. And If this website starts to send me spam, I can easily identify and block it in my gmail.