Qmail – Speed up mail sending process by tunning tcpserver settings

Published on Author gryzliLeave a comment

If you want to speed up qmail/tcpserver sending mails, you could try the following: 1. Open the file supervise/qmail-smtpd/run 2. Change the following line:

TO

This will enable TCP_NODELAY (-D option) and also disable attempts to resolve $TCPREMOTEINFO (-R option). 3. Info about tcpserver options General options:

Connection options:

Data-gathering options: