Thanks Danny - I understand you explaination - this is to be a behaviour of the smpt handler and not necessarily a function of configuration/mailets.
this is an important function - to properly notify the sender of any problems in receiving the mail. what i am not too sure of is the flow - in theory, James receives mail and then processes it via the *Processor Pipe*. one of the mailets is responsible for validating the recipient (makes sure that the user exists) - if not, the mail is processed accorindgly based on the configuration and the appropreate error message should be returned to the sennding server. my dilemma is that at this point the sending server has already been be notified of sucess, the mail in question has been passed off to James.... i see potential a catch-22 situation here - which is a litle bit different then the original problem i expereinced with the db failing where the sender should have been notified. thanks, alan Alan Gerhard Gerhard Computing, Inc. [EMAIL PROTECTED] -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>