The reception of mail from Internet is failed sometime with my SME9 server used only as a mailserver...
any change in the meanwhile? I mean router/isp etc?
take a look at /var/log/qpsmtpd/current (even from server-manager webpanel)
The queue of messages is empty (1 mail...),
this has nothing so see with receiving emails..
take a look at /var/log/qmail/current
RAM memory of server increases gradually without falling until saturation...
and then? does your server lock up? when it happens, is your server still responsive?
if you afraid of seeing all ram being used, don't.. linux, as all UNIX like O.S. uses ram in a smart way..