Hello all, > What can be done to find the bouncer and exclude it from the mailing > list? Sorry for insisting but I could not find a solution in the list owner´s manual apart from 4.7.3: : Please note carefully that it is not the intent of (nor would it be : reasonably possible for) this manual to document each and every : kind of delivery error that you may ever see as a list owner. : Unfortunately, and completely outside the control of anyone at : L-Soft, new types of cryptic, difficult to understand, and totally : misleading errors appear all the time. If you run across something : not otherwise documented here, the best place to ask for help is : the LSTOWN-L mailing list Could anyone give me a hint what to do? Here is a short summary of the problem again: Apparently since the list has moved to another server, a lot but not all of the list members get the following error message each time they send a mail to the list: : Subject: Rejected posting to [log in to unmask] : Your message is being returned to you unprocessed because it : appears to have already been distributed to the HYPNOS list. (...) Despite this error message, each mail is distributed correctly and from time to time there even is a mail distributed twice. The main problem are the irritating error messages. Cheers, Erwin