Working with Report Manager - Learning SQL Server Reporting Services 2012 - page 213

There are two kinds of subscriptions:
• Standard : Managed by individuals and has only one set of presentation,
parameter, and delivery options.
• Data Driven : This kind of subscription is query based and requires
knowledge of parameters. Report Server administrators create and
manage these subscriptions. This is normally used when there are a
large number of recipients.
There are two ways report can be delivered:
• By e-mail : There are several ways by which the reports are delivered
by e-mail.
Through a hyperlink to the generated report, send a notification in the
subject line containing report name (@ReportName) and Executiontime
(@ExecutionTime) embedding or attaching a report.
• Send report file to a shared folder : In order to create a subscription,
a report must have stored credentials. The user must have permission
to view the report and create individual subscriptions. Scheduled events
and report delivery must be enabled on the Report Server.
E-mail addresses are not checked and users must
correctly enter e-mail addresses.