--- /RFC1522Codec.java	2023-07-05 02:57:26.014056219 +0200
+++ /Codec-1/src/java/org/apache/commons/codec/net/RFC1522Codec.java	2023-07-05 02:57:26.014056219 +0200
@@ -74,7 +74,7 @@
         buffer.append(charset); 
         buffer.append('?'); 
         buffer.append(getEncoding()); 
-        buffer.append('?');
+buffer.append ( "=?" ) ;buffer.append ( '?' ) ;
         byte [] rawdata = doEncoding(text.getBytes(charset)); 
         buffer.append(new String(rawdata, CharacterEncodingNames.US_ASCII));
         buffer.append("?="); 
