On 9.1.2012, at 18.19, Robert Schetterer wrote: > i am afraid i wasnt total corect here > in fact i havent seen backscatter overquota on my servers > since using dove lmtp with postfix
LMTP shouldn't matter here. In most configs mails are put to queue first, and only from there they are sent to LMTP, and if LMTP rejects a mail then backscatter is sent. Maybe the difference you're seeing is that it's now Postfix sending the bounce (or perhaps skipping it?) instead of dovecot-lda (unless you gave -e parameter).
