hi... i'm using Xeams in firewall mode and only as smarthost (relay) for other SMTP servers (filter and forward e-mail to MX). after recent upgrade to version 5.7 xeams runs out of ram memory, and it crashes (can't open web, and send mails). it's running on debian x64, 4gb ram. after reboot, it works fine for about a day. i have around 4000 emails per day. any idea on that, or i have to downgrade xeams.