Hi, I'm in the early stages of testing qpsmtpd-apache.
I'm using the CentOS httpd-2.2.3-22 package, and the following qpsmtpd.conf file: Listen 0.0.0.0:25 smtp AcceptFilter smtp none <Perl> use lib qw( /usr/lib/perl5/site_perl ); use Apache::Qpsmtpd; $ENV{QPSMTPD_CONFIG} = "/etc/qpsmtpd"; </Perl> <VirtualHost _default_:25> PerlModule Apache::Qpsmtpd PerlProcessConnectionHandler Apache::Qpsmtpd </VirtualHost> I was struck that the apache processes seem to use a lot of memory compared to qpsmtpd-forkserver: e.g. PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 7876 apache 15 0 255m 18m 2808 S 0.0 1.8 0:00.07 httpd 7877 apache 15 0 255m 18m 2808 S 0.0 1.8 0:00.07 httpd 7878 apache 15 0 255m 18m 2808 S 0.0 1.8 0:00.07 httpd 7879 apache 15 0 255m 18m 2808 S 0.0 1.8 0:00.08 httpd 7880 apache 15 0 255m 18m 2808 S 0.0 1.8 0:00.07 httpd 7881 apache 15 0 255m 18m 2808 S 0.0 1.8 0:00.07 httpd 7882 apache 15 0 255m 18m 2808 S 0.0 1.8 0:00.07 httpd 7883 apache 15 0 255m 18m 2808 S 0.0 1.8 0:00.06 httpd 7884 apache 15 0 255m 18m 2808 S 0.0 1.8 0:00.06 httpd However, that 255m is shared across all processes, isn't it? i.e. the amount of memory used per connection is relatively small, right? R.