You can use filter in Gmail: [http://support.Google.com/mail/bin/answer.py?hl=en&answer=6579]
Filters can be created to block people. You have to type in the criteria for blocking. Saving a filter will not allow people to contact you.
Click the "Warn/block" option from your blue menu barAs you're asking this question, you are most likely a new Super, therefore ensure you read through the Blocking Policy Checklist, and Blocking Policy Q&A's.Click the "Block" radio buttonCopy and paste the IP address into the IP address/username boxAdd a legitimate reason for blocking in the "Reason" boxSelect the duration of the block - the default is 3 hoursClick "Block user."For more information on WikiAnswers policy on the blocking of IP addresses, click on the Related link.
You cannot block sites on Gmail as it is not a browser. You can block sites on browser. Gmail itself is a website running on browser.
IP addresses in Gmail are hidden because of privacy. This privacy can be done by blocking the IP address. The receiver cannot guess the person's location by this.
You have to delete all others manually. They cannot be deleted automatically by Gmail. Then you need to create the new Gmail address.
You can change your Gmail address after you change your IP. You however do not need to do that. It is because gmail is independent of IP address.
You have to block the person to stop the mails. Without blocking the person would continue sending mails. These mails are also a part of spam.
You cannot guess any Gmail address. The addresses of gmail belong to the owner. They are like the lock on the account.
"Gmail is reliable. Gmail has many great features including spam blocking, significant space per account, and there is encryption on gmail accounts to ensure security."
You can pay for dns blocking or opendns does a free blocking filter. You could also edit the dns cache list lmhosts to point to an invalid ip address. But unfortunately there is no way to permenantly block a host all these methods are revertable. no changing, ive blocked it!
You can transfer your email address to your Gmail address book. Gmail can import various contacts from others. This can be done in the settings and then import.
You cannot get the gmail address of anyone by their name. The gmail addresses are unique for everyone. The serve the purpose of logging into the account.