diff --git a/sentry-ruby/lib/sentry-ruby.rb b/sentry-ruby/lib/sentry-ruby.rb
index 79417d40f..439d83ce5 100644
--- a/sentry-ruby/lib/sentry-ruby.rb
+++ b/sentry-ruby/lib/sentry-ruby.rb
@@ -257,7 +257,7 @@ def close
       end
 
       if client = get_current_client
-        client.transport.flush
+        client.flush
 
         if client.configuration.include_local_variables
           exception_locals_tp.disable
diff --git a/sentry-ruby/lib/sentry/client.rb b/sentry-ruby/lib/sentry/client.rb
index d5e633739..a337e02a4 100644
--- a/sentry-ruby/lib/sentry/client.rb
+++ b/sentry-ruby/lib/sentry/client.rb
@@ -77,6 +77,25 @@ def capture_event(event, scope, hint = {})
       nil
     end
 
+    # Capture an envelope directly.
+    # @param envelope [Envelope] the envelope to be captured.
+    # @return [void]
+    def capture_envelope(envelope)
+      Sentry.background_worker.perform do
+        send_envelope(envelope)
+      end
+    rescue => e
+      log_error("Envelope capturing failed", e, debug: configuration.debug)
+      nil
+    end
+
+    # Flush pending events to Sentry.
+    # @return [void]
+    def flush
+      transport.flush if configuration.sending_to_dsn_allowed?
+      spotlight_transport.flush if spotlight_transport
+    end
+
     # Initializes an Event object with the given exception. Returns `nil` if the exception's class is excluded from reporting.
     # @param exception [Exception] the exception to be reported.
     # @param hint [Hash] the hint data that'll be passed to `before_send` callback and the scope's event processors.
@@ -183,6 +202,19 @@ def send_event(event, hint = nil)
       raise
     end
 
+    # Send an envelope directly to Sentry.
+    # @param envelope [Envelope] the envelope to be sent.
+    # @return [void]
+    def send_envelope(envelope)
+      transport.send_envelope(envelope) if configuration.sending_to_dsn_allowed?
+      spotlight_transport.send_envelope(envelope) if spotlight_transport
+    rescue => e
+      # note that we don't record client reports for direct envelope types
+      # such as metrics, sessions etc
+      log_error("Envelope sending failed", e, debug: configuration.debug)
+      raise
+    end
+
     # @deprecated use Sentry.get_traceparent instead.
     #
     # Generates a Sentry trace for distribted tracing from the given Span.
diff --git a/sentry-ruby/lib/sentry/metrics/aggregator.rb b/sentry-ruby/lib/sentry/metrics/aggregator.rb
index 4624a3559..f8e134a97 100644
--- a/sentry-ruby/lib/sentry/metrics/aggregator.rb
+++ b/sentry-ruby/lib/sentry/metrics/aggregator.rb
@@ -107,9 +107,7 @@ def flush(force: false)
           end
         end
 
-        Sentry.background_worker.perform do
-          @client.transport.send_envelope(envelope)
-        end
+        @client.capture_envelope(envelope)
       end
 
       def kill
diff --git a/sentry-ruby/lib/sentry/session_flusher.rb b/sentry-ruby/lib/sentry/session_flusher.rb
index ea75d4d6f..256320ca7 100644
--- a/sentry-ruby/lib/sentry/session_flusher.rb
+++ b/sentry-ruby/lib/sentry/session_flusher.rb
@@ -20,12 +20,8 @@ def initialize(configuration, client)
 
     def flush
       return if @pending_aggregates.empty?
-      envelope = pending_envelope
-
-      Sentry.background_worker.perform do
-        @client.transport.send_envelope(envelope)
-      end
 
+      @client.capture_envelope(pending_envelope)
       @pending_aggregates = {}
     end
 
diff --git a/sentry-ruby/spec/sentry/session_flusher_spec.rb b/sentry-ruby/spec/sentry/session_flusher_spec.rb
index b2bf91f82..5f9f53cdf 100644
--- a/sentry-ruby/spec/sentry/session_flusher_spec.rb
+++ b/sentry-ruby/spec/sentry/session_flusher_spec.rb
@@ -5,6 +5,7 @@
 
   let(:configuration) do
     Sentry::Configuration.new.tap do |config|
+      config.dsn = Sentry::TestHelper::DUMMY_DSN
       config.release = 'test-release'
       config.environment = 'test'
       config.transport.transport_class = Sentry::DummyTransport