[Mimedefang] Out of memory?

[Andrew S. Johnson]

No matter what I set the max memory to in rc.mimedefang, after every few
messages I get this in the logs:

mimedefang-multiplexor: Slave 1 stderr: Out of memory!
mimedefang-multiplexor: Slave 1 ran out of memory -- possible DoS attack due to complex MIME?

>From my rc.mimedefang:

# Limit slave processes' resident-set size to this many kilobytes.  Default
# is unlimited.
MX_MAX_RSS=50000

# Limit total size of slave processes' memory space to this many kilobytes.
# Default is unlimited.
MX_MAX_AS=50000

Just how big does it have to be?

Andy Johnson