Hi folks, first of all: No, I can not change my provider nor use another smtp server.
second: I thought, this issue involves other people on this list, too, which might be interesting for them. third: I supposed, this issue is caused by debian mailservers, because this issue appears ONLY at the debian list and nowhere else, I tested here. fourth: As this issue seem only affect me, I suggest to close this discussion, because it creates a lot of unnecessary traffic. So I set this to "solved" and won't ask further more. Thank you everyone, for your patience and your help! Best regards and have a nice weekend! Hans
