Returns information about your SimpleEmailService quotas.
@private
@return [Integer] The maximum number of emails the user is allowed
to send in a 24-hour interval.
@return [Float] The maximum number of emails the user is allowed
to send per second.
@return [Integer] Returns the number of emails sent during the
previous 24 hours.
@example
@ses.quotas.to_h # {:max_24_hour_send=>200, :max_send_rate=>1.0, :sent_last_24_hours=>22}
@return [Hash] Returns a hash of the SES quotas.
[Validate]