I'd really appreciate your opinions as to what it is about the header, below, if anything, that causes a very few undeliverable mail messages to bounce back to the list, rather than to the owner (while most errors are going to the owner)? Does it perhaps have something to do with the reply-to option? Or is it just something at the particular node to which the bouncing address is being sent? Or could it be the type of bounce that doesn't quite qualify it as an "error"? TIA /K2 <[log in to unmask]> * Review= Public Subscription= By_owner Send= public * Notify= Yes Reply-to= List,Ignore Files= Yes * Validate= All commands Notebook= yes,b5/200,weekly * Confidential= No Mail-Via=Distribute * Errors-to= intabcde@uvmvm * Default-options= repro * * Owner= intabcde@uvmvm (Jo Schmoe) * Editor= intabcde@uvmvm (Jo Schmoe) BTW, the message was to <[log in to unmask]> and the bounce was from <[log in to unmask]> saying that "ALL-IN-1" was unable to deliver the message because there was no such "a1" account...