diff --git a/core/forms.py b/core/forms.py
index 1cb716e..4dbe1d2 100644
--- a/core/forms.py
+++ b/core/forms.py
@@ -70,7 +70,7 @@ class SystemConfigForm(forms.ModelForm):
             'smtp_port': forms.NumberInput(attrs={'class': 'form-control', 'placeholder': '请输入SMTP端口'}),
             'smtp_username': forms.TextInput(attrs={'class': 'form-control', 'placeholder': '请输入SMTP用户名'}),
             'smtp_password': forms.PasswordInput(attrs={'class': 'form-control', 'placeholder': '请输入SMTP密码'}),
-            'sender_email': forms.EmailInput(attrs={'class': 'form-control', 'placeholder': '请输入发件人邮箱'}),
+            'sender_email': forms.EmailInput(attrs={'class': 'form-control', 'placeholder': '请输入发件人的邮箱'}),
             'send_time': forms.TimeInput(attrs={'type': 'time', 'class': 'form-control'}),
             'recipient_email': forms.EmailInput(attrs={'class': 'form-control', 'placeholder': '请输入收件人邮箱'}),
         }