Powermta 60r3 Install -

| Problem | Likely Cause | Solution | |---------|--------------|----------| | Cannot open license.db | File permissions | chown pmta:pmta /etc/pmta/license.db | | High memory usage | Too many max-queue-size or processes | Reduce values; monitor with free -h | | Bounce processing not working | No bounce mailbox configured | Set bounce-handler and run pmta handle-bounces | | Slow delivery to Gmail/AOL | Throttling too aggressive | Increase throttle-ip to 500–1000 for good IPs | | Config changes not applying | Forgot to reload | systemctl reload pmta (graceful) |

RPM-based (CentOS/RHEL):

sudo rpm -ivh powermta-6.0r3.rpm

If upgrading:

sudo rpm -Uvh powermta-6.0r3.rpm

Deb-based (Ubuntu/Debian):

sudo dpkg -i powermta-6.0r3.deb
sudo apt -f install -y   # fix deps if needed

Default installation path typically: /opt/pmta or /usr/sbin/pmta with config in /etc/pmta. powermta 60r3 install

# Process identification
pidfile /var/run/pmta.pmta
logfile /var/log/pmta/pmta.log
spool /var/spool/pmta