Hi Peter, hi list, On 22.03.2020 12:45, Peter Müller wrote: > ...may I ask you to simply avoid the domain humdi[.]net in your > messages? No problem. Did it. Mail was successfully sent. Yeah! > By the way: For testing purposes, a mailinglist is available at . Ok, next time I'll use this. I didn't look for a test list. Next time... Thanks again, Matthias