How to Transfer a Domain Name to WordPress

Domain Mapping
1. Log into your account at your domain registrar and update the name servers for your domain name. The exact procedure will vary depending on which registrar you use, but you can often find the option to update name servers under 'DNS Settings' or 'Modify DNS.' Delete any name servers that are already listed, and add new name servers by typing them into the boxes. Enter the following name servers without quotes: 'ns1.wordpress.com', 'ns2.wordpress.com' and 'ns3.wordpress.com'. Wait approximately 24 hours for the name server changes to take effect.
2. Log into your blog dashboard at WordPress.com. Click on 'Settings' and choose 'Domains.' Type your domain name into the Add a Domain box and click on 'Add domain to blog.' WordPress will verify that the name server changes are in effect.

3. Complete the purchase of your upgrade.
4. Return to your blog dashboard and select 'Settings' and 'Domains.' Click on the radio button next to your new domain name and click on 'Update Primary Domain.'
Email Settings
5. Obtain the correct MX settings from your domain registrar, to receive or send emails at this domain through your registrar.
6. Log into your blog dashboard, click on 'Upgrades' and select 'Domains.'
7. Click the 'Edit DNS' link next to the domain name. Enter the MX settings in the format 'MX Preference Hostname.' without quotes. Note that a period follows the hostname.
8. Click 'Save DNS records' to validate and save your settings.