On Fri, Oct 24, 2014 at 03:55:55PM +0200, Jan P. Kessler wrote: > > # find /var/spool/postfix/defer -type f|wc -l > 13532
These are not mail messages (those would be in "deferred" not "defer"). These are "defer logs", used to construct the per-recipient error reasons in bounce messages. They are best left alone, but can be deleted with care, something along the lines of: # postfix stop # postsuper -s # cd /var/spool/postfix # (find defer -type f -print; find deferred -type f -print) | perl -lne ' if (m{^defer/(?:.*/)?(.*)$}) { $defer{$1} = $_; } elsif (m{^deferred/(?:.*/)?(.*)$}) { delete $defer{$1}; } END { while (($id, $path) = each(%defer)) { if (unlink($path)) { printf "%s defer log deleted\n", $id; } else { warn "unlink: $path: $!\n"; } } } ' -- Viktor.