Are Gmail usernames dot sensitive or not? I had this confusion.
If there is a gmail id say geetha[dot]email@example.com and if by mistake if some one sends mail to firstname.lastname@example.org (without dot) it is getting delivered to geetha[dot]email@example.com. I wondered how that is possible. Then Gmail’s help center told me that firstname.lastname@example.org is same as email@example.com.So there cannot be gmail ids like firstname.lastname@example.org,email@example.com,firstname.lastname@example.org.So gmail usernames are not dot sensitive and only single registration of a particular username is possible.ie., if user[dot]email@example.com is already registered we cannot register firstname.lastname@example.org(without dot).This is Gmail’s dot-blindness
Logging into gmail is possible only as user[dot]email@example.com and not possible as firstname.lastname@example.org (without dot) though the mail delivery is possible when TO field is email@example.com if the registered id is user[dot]firstname.lastname@example.org.
Gmail doesnt allow users to create an account with underscore where as other email services like yahoo allow underscores.I couldn’t get the reason why they dont allow underscores and why they gave the option of using dot alone in usernames though they doesnt recognise dot as a character during mail delivery.And i dont understand the purpose of dot.Does dot replace the purpose of underscores used in other mail services?