diff --git a/src/Bootstrappers/MailTenancyBootstrapper.php b/src/Bootstrappers/MailTenancyBootstrapper.php
new file mode 100644
index 00000000..a2d96c51
--- /dev/null
+++ b/src/Bootstrappers/MailTenancyBootstrapper.php
@@ -0,0 +1,68 @@
+<?php
+
+namespace Stancl\Tenancy\Bootstrappers;
+
+use Illuminate\Support\Arr;
+use Illuminate\Config\Repository;
+use Stancl\Tenancy\Contracts\Tenant;
+use Stancl\Tenancy\Contracts\TenancyBootstrapper;
+
+class MailTenancyBootstrapper implements TenancyBootstrapper
+{
+    protected array $originalConfig = [];
+
+    public function __construct(protected Repository $config)
+    {
+    }
+
+    public function bootstrap(Tenant $tenant): void
+    {
+        foreach ($this->credentialsMap() as $storageKey => $configKey) {
+            /** @var Tenant&Model $tenant */
+            $override = Arr::get($tenant, $storageKey);
+
+            if (! is_null($override)) {
+                if (is_array($configKey)) {
+                    foreach ($configKey as $key) {
+                        $this->originalConfig[$key] = $this->originalConfig[$key] ?? $this->config->get($key);
+
+                        $this->config->set($key, $override);
+                    }
+                } else {
+                    $this->originalConfig[$configKey] = $this->originalConfig[$configKey] ?? $this->config->get($configKey);
+
+                    $this->config->set($configKey, $override);
+                }
+            }
+        }
+    }
+
+    public function revert(): void
+    {
+        foreach ($this->originalConfig as $key => $value) {
+            $this->config->set($key, $value);
+        }
+    }
+
+    /**
+     * Tenant properties to be mapped to config (similarly the TenantConfig feature).
+     *
+     * For example:
+     * [
+     *     'property' => 'config.key.name',
+     * ]
+     */
+    protected function credentialsMap()
+    {
+        return [
+            'smtp_transport' => 'mail.mailers.smtp.transport',
+            'smtp_host' => 'mail.mailers.smtp.host',
+            'smtp_port' => 'mail.mailers.smtp.port',
+            'smtp_encryption' => 'mail.mailers.smtp.encryption',
+            'smtp_username' => 'mail.mailers.smtp.username',
+            'smtp_password' => 'mail.mailers.smtp.password',
+            'smtp_timeout' => 'mail.mailers.smtp.timeout',
+            'smtp_local_domain' => 'mail.mailers.smtp.local_domain',
+        ];
+    }
+}