Hi Julian, sure I restart MailScanner ;-) I found the Problem... The "Precedence" Entry in message.pm is only present in "sub Warnsender", not in "sub HandleSpamBounce". There is also no "Precedence" Entry in MCPMessage.pm (sub HandleMCPBounce). I just add the same line as found in "sub Warnsender" to the other two Routines and all work :-) Thanks Holger