Hi,

We have a printer IP segment/VLAN which is only printers and these printers are also scanners, and they email the scan back to the user.  Since the scan outputs frequently exceed the configured message_size_limit of 7.5MB, in master.cf I configured a non-standard port (2526) that is restricted to the printer segment and sets to message_size_limit back to the default of 10240000. 

Now, when I send an oversize message (6.2MB, not even that large), I no longer get the message telling me that I have exceeded the 7.5MB message size limit (6.2MB, when BASE64 encoded will more than exceed the message_size_limit being bypassed), but instead, I am getting the message from cleanup: "queue file size limit exceeded". 

Aug 28 08:45:04 neskowin postfix/cleanup[14971]: warning: E6F3B580F3: queue file size limit exceeded

I did a bit of googling, and all I found was to check the amount of free space left in the queue and whether the message size exceeds queue_minfree.  There is several gigabytes free on the partition where the Postfix queue reside and queue_minfree is set to zero which is the default and I presume means unlimited.

Any idea what the problem might be?


Thanks,

Rob Tanner
Linfield College