I have got the following very useful answer from Johan, that I would like to share with the list /Keld
----- Forwarded message from Johan Ferner <[EMAIL PROTECTED]> ----- The file /usr/share/doc/postfix-20010228/RELEASE_NOTES says: [snapshot-20010128] The Postfix local delivery agent now enforces mailbox file size limits (default: mailbox_size_limit = 51200000). This limit affects all file write access by the local delivery agent or by a process run by the local delivery agent. The purpose of this parameter is to act as a safety for run-away software. It cannot be a substitute for a file quota management system. Specify a limit of 0 to disable. So, I guess putting mailbox_size_limit=0 in /etc/postfix/master.cf would do the trick. Also you can have a look at /usr/share/doc/postfix-20010228/sample/sample-local.cf where this parameter is set. // Johan
