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@@ -330,6 +330,11 @@ function sync($email_id,$worker_id){
 }
 
 
+if(!function_exists("imap_open")){
+    echo '请安装imap扩展';
+    exit(0);
+}
+
 
 
 $ps = "ps -ef | grep \"sync.php start\" | grep -v grep | wc -l";