diff --git a/app/modules/discord/discord.py b/app/modules/discord/discord.py
index 8477c638..f1997c5c 100644
--- a/app/modules/discord/discord.py
+++ b/app/modules/discord/discord.py
@@ -2,6 +2,7 @@ import asyncio
 import re
 import threading
 from typing import Optional, List, Dict, Any, Tuple, Union
+from urllib.parse import quote
 
 import discord
 from discord import app_commands
@@ -47,7 +48,9 @@ class Discord:
         base_ds_url = f"http://127.0.0.1:{settings.PORT}/api/v1/message/"
         self._ds_url = f"{base_ds_url}?token={settings.API_TOKEN}"
         if kwargs.get("name"):
-            self._ds_url = f"{self._ds_url}&source={kwargs.get('name')}"
+            # URL encode the source name to handle special characters in config names
+            encoded_name = quote(kwargs.get('name'), safe='')
+            self._ds_url = f"{self._ds_url}&source={encoded_name}"
         logger.debug(f"[Discord] 消息回调 URL: {self._ds_url}")
 
         intents = discord.Intents.default()
@@ -548,10 +551,11 @@ class Discord:
         """
         Resolve the channel to send messages to.
         Priority order:
-        1. chat_id (original channel where user sent the message) - for contextual replies
-        2. userid (DM) - for private conversations
-        3. Configured _channel_id (broadcast channel) - for system notifications
+        1. `chat_id` (original channel where user sent the message) - for contextual replies
+        2. `userid` mapping (channel where user last sent a message) - for contextual replies
+        3. Configured `_channel_id` (broadcast channel) - for system notifications
         4. Any available text channel in configured guild - fallback
+        5. `userid` (DM) - for private conversations as a final fallback
         """
         logger.debug(f"[Discord] _resolve_channel: userid={userid}, chat_id={chat_id}, "
                      f"_channel_id={self._channel_id}, _guild_id={self._guild_id}")
diff --git a/app/modules/slack/slack.py b/app/modules/slack/slack.py
index 3931ecee..16f890c0 100644
--- a/app/modules/slack/slack.py
+++ b/app/modules/slack/slack.py
@@ -1,6 +1,7 @@
 import re
 from threading import Lock
 from typing import List, Optional
+from urllib.parse import quote
 
 import requests
 from slack_bolt import App
@@ -42,7 +43,9 @@ class Slack:
 
         # 标记消息来源
         if kwargs.get("name"):
-            self._ds_url = f"{self._ds_url}&source={kwargs.get('name')}"
+            # URL encode the source name to handle special characters
+            encoded_name = quote(kwargs.get('name'), safe='')
+            self._ds_url = f"{self._ds_url}&source={encoded_name}"
 
         # 注册消息响应
         @slack_app.event("message")
diff --git a/app/modules/telegram/telegram.py b/app/modules/telegram/telegram.py
index c7588e95..86817b8a 100644
--- a/app/modules/telegram/telegram.py
+++ b/app/modules/telegram/telegram.py
@@ -2,7 +2,7 @@ import asyncio
 import re
 import threading
 from typing import Optional, List, Dict, Callable
-from urllib.parse import urljoin
+from urllib.parse import urljoin, quote
 
 from telebot import TeleBot, apihelper
 from telebot.types import BotCommand, InlineKeyboardMarkup, InlineKeyboardButton, InputMediaPhoto
@@ -65,7 +65,9 @@ class Telegram:
 
             # 标记渠道来源
             if kwargs.get("name"):
-                self._ds_url = f"{self._ds_url}&source={kwargs.get('name')}"
+                # URL encode the source name to handle special characters
+                encoded_name = quote(kwargs.get('name'), safe='')
+                self._ds_url = f"{self._ds_url}&source={encoded_name}"
 
             @_bot.message_handler(commands=['start', 'help'])
             def send_welcome(message):