sp_send_dbmail
Reference
"The parameters
@recipients,@copy_recipients, and@blind_copy_recipientsare semicolon-delimited lists of e-mail addresses. At least one of these parameters must be provided, orsp_send_dbmailreturns an error."
Setup
- in Ssms expand the 
Managementfolder in the Object Explorer - Right click on 
Database Mail>Configure Database Mail>Next Manage Database Mail accounts and profilesin the radio button selection listNextCreate a new accountthis is the email account that will actually be sending the emails for you- Gmail is great here because it can be used as a pass through thought you might need to enable additional access in the settings menu of gmail
 - The outcome of this is that you receive emails from that Gmail account but in an automated fashion
 
- New account details
- Account name and description are just for your reference but use them in tandem with the Display name to use an account for each of your Services
 - Email address is the service account email address
 - Display name is what it looks like the email is actually from
 - reply email is who the replies go to
 - server name for gmail would be 
smtp.gmail.comwith port number 587 - The Secure Socket Layer checkbox should be ticked
 - Use basic authentication (radio button)
 - username is the service account email address
 - password is the password for the service account email address
 
 Create a new profile, this is what will be holding the account(s) that send email- Give it a name and description
 - add your email account you made to it
 - finish
 - test 
sp_send_dbmail 
Examples
Simple Message
EXEC msdb.dbo.sp_send_dbmail
    @profile_name = 'Adventure Works Administrator',
    @recipients = 'yourfriend@Adventure-Works.com',
    @body = 'The stored procedure finished successfully.',
    @subject = 'Automated Success Message' ;
Email message with the results of a query
EXEC msdb.dbo.sp_send_dbmail
    @profile_name = 'Adventure Works Administrator',
    @recipients = 'yourfriend@Adventure-Works.com',
    @query = 'SELECT COUNT(1)
              FROM AdventureWorks2012.Production.WorkOrder
              WHERE 1 = 1
              AND DueDate > ''2004-04-30''
              AND  DATEDIFF(dd, ''2004-04-30'', DueDate) < 2' ,
    @subject = 'Work Order Count',
    @attach_query_result_as_file = 1 ;
Sending HTML Email
DECLARE @tableHTML  NVARCHAR(MAX) ;
SET @tableHTML =
    N'<H1>Work Order Report</H1>' +
    N'<table border="1">' +
    N'<tr><th>Work Order ID</th><th>Product ID</th>' +
    N'<th>Name</th><th>Order Qty</th><th>Due Date</th>' +
    N'<th>Expected Revenue</th></tr>' +
    CAST ( ( SELECT
             td = wo.WorkOrderID, '',
             td = p.ProductID, '',
             td = p.Name, '',
             td = wo.OrderQty, '',
             td = wo.DueDate, '',
             td = (p.ListPrice - p.StandardCost) * wo.OrderQty
             FROM AdventureWorks.Production.WorkOrder AS wo
             JOIN AdventureWorks.Production.Product AS p ON wo.ProductID = p.ProductID
             WHERE 1 = 1
             AND DueDate > '2004-04-30'
             AND DATEDIFF(dd, '2004-04-30', DueDate) < 2
             ORDER BY
             DueDate ASC,
             (p.ListPrice - p.StandardCost) * wo.OrderQty DESC
             FOR XML PATH('tr'), TYPE
    ) AS NVARCHAR(MAX) ) +
    N'</table>' ;
EXEC msdb.dbo.sp_send_dbmail @recipients='yourfriend@Adventure-Works.com',
    @subject = 'Work Order List',
    @body = @tableHTML,
    @body_format = 'HTML' ;