I haven't really got the hang of how the system handles bounces yet... but I've been getting this one response message back from Mailman for one user (email address nuked below to protect the innocent :), can't quite figure out what the problem is.

Help!

<snip> This is a Mailman mailing list bounce action notice: List: pzd-list Member: xxxxxxx@stm-student1.stm.tudelft.nl Action: Subscription not disabled. Reason: Excessive or fatal bounces. BUT: User not found. The triggering bounce notice is attached below. With reference to your message with the subject: "Re: [pzd-list] chats Thursday" The local mail transport system has reported the following problems it encountered while trying to deliver your message:

User <xxxxxxx@stm-student1.stm.tudelft.nl> not known at this site.

Your mail message is being returned to you in the next part of this message. Should you need assistance, please mail postmaster@stm-student1.stm.tudelft.nl. <snip>

Thanks,

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Mike <<<<<