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