Import upstream v0.16.22, stripped

Upstream commit: 474dd0229cb20cf513036619781ed97bd8073c3f
Enterprise-only files removed or emptied: 63
Enterprise-only snippets removed: 117 in 50 files
Dangling module declarations removed: 5
Cargo edits turning enterprise off: 14
Verification: clean
Enterprise feature gates left for rebuilt features: 19 in 18 files

Produced by tools/fork/strip.py. The full report is in docs/fork/strip-reports/ on main.

crates/smtp/src/lib.rs

@@ -0,0 +1,49 @@
+/*
+ * SPDX-FileCopyrightText: 2020 Stalwart Labs LLC <[email protected]>
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-SEL
+ */
+
+#![warn(clippy::large_futures)]
+
+use common::{
+    Inner,
+    manager::boot::{BootManager, IpcReceivers},
+};
+use queue::manager::SpawnQueue;
+use reporting::scheduler::SpawnReport;
+use std::sync::Arc;
+
+pub mod core;
+pub mod inbound;
+pub mod outbound;
+pub mod queue;
+pub mod reporting;
+pub mod scripts;
+
+pub trait StartQueueManager {
+    fn start_queue_manager(&mut self);
+}
+
+pub trait SpawnQueueManager {
+    fn spawn_queue_manager(&mut self, inner: Arc<Inner>);
+}
+
+impl StartQueueManager for BootManager {
+    fn start_queue_manager(&mut self) {
+        self.ipc_rxs.spawn_queue_manager(self.inner.clone());
+    }
+}
+
+impl SpawnQueueManager for IpcReceivers {
+    fn spawn_queue_manager(&mut self, inner: Arc<Inner>) {
+        let core = inner.shared_core.load();
+        if !core.storage.registry.is_recovery_mode() && core.network.roles.outbound_mta {
+            // Spawn queue manager
+            self.queue_rx.take().unwrap().spawn(inner.clone());
+
+            // Spawn report manager
+            self.report_rx.take().unwrap().spawn(inner);
+        }
+    }
+}