On Wed, Apr 24, 2013 at 03:07:05PM +0200, Reindl Harald wrote: > Am 24.04.2013 14:58, schrieb Nicolas HAHN: > > Does somebody knows what is happening? > > no because you missed to send any log-information
Definitely. > maybe to less memory to proceed messages with 150 MB Postfix memory usage does not depend on message size. Far more likely some filter has message size issues, or perhaps mailbox_size_limit has not been raised to match, or the OP failed to reload Postfix, so that the message size limit was different in some processes. -- Viktor.