amavis error with postfix-mysql

[M0rF3uS]

Hi there,

i've some troubles with amavis and postfix on debian etch, in my log i got:

Apr 30 14:08:21 localhost amavis[1931]: (01931-04) (!!) TROUBLE in check_mail: parts_decode_ext FAILED: run_command (open pipe): Can't fork at /usr/lib/perl/5.8/IO/File.pm line 70. (Cannot allocate memory) at /usr/sbin/amavisd-new line 2216.
Apr 30 14:08:21 localhost amavis[1931]: (01931-04) (!) PRESERVING EVIDENCE in /var/lib/amavis/tmp/amavis-20080430T140821-01931


so mails goes in queue but never delivered.

i followed this -> http://howtoforge.com/virtual_postfix_mysql_quota_courier
could you help me?
thx

[M0rF3uS]

update:

could it be for low memory?

Mem: 262336k total, 251660k used, 10676k free, 1496k buffers

(used by spamd and amavis, but i've no traffic on the moment on the server lol)

[M0rF3uS]

solved: i installed dphys-swapfile to create a swap space so amavis can check e deliver mails