ts a rented vserver from server4you.
I wasn't aware of these limits when choosing this solution. I tried to remain within the RAM and CPU bounds and that works but I do have these failcounts.
I just need to know more or less what causes these so I can configure the server to avoid them :-(
for now its kind of not changing...
as I said earlier, I reduced a lot! I think the disk I/O usually happens when sending the huge newsletter... so I limited postfix for now... will soon send out the first one and see what happens...