diff --git a/bazarr/app/config.py b/bazarr/app/config.py
index 0106aacf9..eebd5729b 100644
--- a/bazarr/app/config.py
+++ b/bazarr/app/config.py
@@ -293,6 +293,9 @@ validators = [
     Validator('subsync.subsync_movie_threshold', must_exist=True, default=70, is_type_of=int, gte=0, lte=100),
     Validator('subsync.debug', must_exist=True, default=False, is_type_of=bool),
     Validator('subsync.force_audio', must_exist=True, default=False, is_type_of=bool),
+    Validator('subsync.checker', must_exist=True, default={}, is_type_of=dict),
+    Validator('subsync.checker.blacklisted_providers', must_exist=True, default=[], is_type_of=list),
+    Validator('subsync.checker.blacklisted_languages', must_exist=True, default=[], is_type_of=list),
 
     # series_scores section
     Validator('series_scores.hash', must_exist=True, default=359, is_type_of=int),
@@ -402,7 +405,9 @@ array_keys = ['excluded_tags',
               'enabled_providers',
               'path_mappings',
               'path_mappings_movie',
-              'language_equals']
+              'language_equals',
+              'blacklisted_languages',
+              'blacklisted_providers']
 
 empty_values = ['', 'None', 'null', 'undefined', None, []]
 
@@ -628,7 +633,10 @@ def save_settings(settings_items):
             reset_throttled_providers(only_auth_or_conf_error=True)
 
         if settings_keys[0] == 'settings':
-            settings[settings_keys[1]][settings_keys[2]] = value
+            if len(settings_keys) == 3:
+                settings[settings_keys[1]][settings_keys[2]] = value
+            elif len(settings_keys) == 4:
+                settings[settings_keys[1]][settings_keys[2]][settings_keys[3]] = value
 
         if settings_keys[0] == 'subzero':
             mod = settings_keys[1]
@@ -775,3 +783,31 @@ def configure_proxy_func():
 def get_scores():
     settings = get_settings()
     return {"movie": settings["movie_scores"], "episode": settings["series_scores"]}
+
+
+def sync_checker(subtitle):
+    " This function can be extended with settings. It only takes a Subtitle argument"
+
+    logging.debug("Checker data [%s] for %s", settings.subsync.checker, subtitle)
+
+    bl_providers = settings.subsync.checker.blacklisted_providers
+
+    # TODO
+    # bl_languages = settings.subsync.checker.blacklisted_languages
+
+    verdicts = set()
+
+    # You can add more inner checkers. The following is a verfy basic one for providers,
+    # but you can make your own functions, etc to handle more complex stuff. You have
+    # subtitle data to compare.
+
+    verdicts.add(subtitle.provider_name not in bl_providers)
+
+    met = False not in verdicts
+
+    if met is True:
+        logging.debug("BAZARR Sync checker passed.")
+        return True
+    else:
+        logging.debug("BAZARR Sync checker not passed. Won't sync.")
+        return False
diff --git a/bazarr/subtitles/processing.py b/bazarr/subtitles/processing.py
index 9325d1904..34538b147 100644
--- a/bazarr/subtitles/processing.py
+++ b/bazarr/subtitles/processing.py
@@ -3,7 +3,7 @@
 
 import logging
 
-from app.config import settings
+from app.config import settings, sync_checker as _defaul_sync_checker
 from utilities.path_mappings import path_mappings
 from utilities.post_processing import pp_replace, set_chmod
 from languages.get_languages import alpha2_from_alpha3, alpha2_from_language, alpha3_from_language, language_from_alpha3
@@ -69,6 +69,9 @@ def process_subtitle(subtitle, media_type, audio_language, path, max_score, is_u
     message = (f"{downloaded_language}{modifier_string} subtitles {action} from {downloaded_provider} with a score of "
                f"{percent_score}%.")
 
+    sync_checker = _defaul_sync_checker
+    logging.debug("Sync checker: %s", sync_checker)
+
     if media_type == 'series':
         episode_metadata = database.execute(
             select(TableEpisodes.sonarrSeriesId, TableEpisodes.sonarrEpisodeId)
@@ -79,13 +82,14 @@ def process_subtitle(subtitle, media_type, audio_language, path, max_score, is_u
         series_id = episode_metadata.sonarrSeriesId
         episode_id = episode_metadata.sonarrEpisodeId
 
-        from .sync import sync_subtitles
-        sync_subtitles(video_path=path, srt_path=downloaded_path,
-                       forced=subtitle.language.forced,
-                       srt_lang=downloaded_language_code2, media_type=media_type,
-                       percent_score=percent_score,
-                       sonarr_series_id=episode_metadata.sonarrSeriesId,
-                       sonarr_episode_id=episode_metadata.sonarrEpisodeId)
+        if sync_checker(subtitle) is True:
+            from .sync import sync_subtitles
+            sync_subtitles(video_path=path, srt_path=downloaded_path,
+                           forced=subtitle.language.forced,
+                           srt_lang=downloaded_language_code2, media_type=media_type,
+                           percent_score=percent_score,
+                           sonarr_series_id=episode_metadata.sonarrSeriesId,
+                           sonarr_episode_id=episode_metadata.sonarrEpisodeId)
     else:
         movie_metadata = database.execute(
             select(TableMovies.radarrId)
@@ -96,12 +100,13 @@ def process_subtitle(subtitle, media_type, audio_language, path, max_score, is_u
         series_id = ""
         episode_id = movie_metadata.radarrId
 
-        from .sync import sync_subtitles
-        sync_subtitles(video_path=path, srt_path=downloaded_path,
-                       forced=subtitle.language.forced,
-                       srt_lang=downloaded_language_code2, media_type=media_type,
-                       percent_score=percent_score,
-                       radarr_id=movie_metadata.radarrId)
+        if sync_checker(subtitle) is True:
+            from .sync import sync_subtitles
+            sync_subtitles(video_path=path, srt_path=downloaded_path,
+                           forced=subtitle.language.forced,
+                           srt_lang=downloaded_language_code2, media_type=media_type,
+                           percent_score=percent_score,
+                           radarr_id=movie_metadata.radarrId)
 
     if use_postprocessing is True:
         command = pp_replace(postprocessing_cmd, path, downloaded_path, downloaded_language, downloaded_language_code2,
diff --git a/frontend/src/pages/Settings/Subtitles/index.tsx b/frontend/src/pages/Settings/Subtitles/index.tsx
index 0d0337201..ee0dda2ce 100644
--- a/frontend/src/pages/Settings/Subtitles/index.tsx
+++ b/frontend/src/pages/Settings/Subtitles/index.tsx
@@ -5,6 +5,7 @@ import {
   CollapseBox,
   Layout,
   Message,
+  MultiSelector,
   Password,
   Section,
   Selector,
@@ -23,6 +24,7 @@ import {
   embeddedSubtitlesParserOption,
   folderOptions,
   hiExtensionOptions,
+  providerOptions,
 } from "./options";
 
 interface CommandOption {
@@ -405,6 +407,13 @@ const SettingsSubtitlesView: FunctionComponent = () => {
           subtitles.
         </Message>
         <CollapseBox indent settingKey="settings-subsync-use_subsync">
+          <MultiSelector
+            placeholder="Select providers..."
+            label="Do not sync subtitles downloaded from those providers"
+            clearable
+            options={providerOptions}
+            settingKey="settings-subsync-checker-blacklisted_providers"
+          ></MultiSelector>
           <Check label="Debug" settingKey="settings-subsync-debug"></Check>
           <Message>
             Do not actually sync the subtitles but generate a .tar.gz file to be
diff --git a/frontend/src/pages/Settings/Subtitles/options.ts b/frontend/src/pages/Settings/Subtitles/options.ts
index 62c4f60b2..2c57584fe 100644
--- a/frontend/src/pages/Settings/Subtitles/options.ts
+++ b/frontend/src/pages/Settings/Subtitles/options.ts
@@ -1,4 +1,5 @@
 import { SelectorOption } from "@/components";
+import { ProviderList } from "../Providers/list";
 
 export const hiExtensionOptions: SelectorOption<string>[] = [
   {
@@ -165,3 +166,10 @@ export const colorOptions: SelectorOption<string>[] = [
     value: buildColor("dark-grey"),
   },
 ];
+
+export const providerOptions: SelectorOption<string>[] = ProviderList.map(
+  (v) => ({
+    label: v.key,
+    value: v.key,
+  })
+);