sorted by: recent | see : popular

Content Tagged with tuning + Postfix

qshape -s hold | head

This document describes the qshape(1) program which helps the administrator understand the Postfix queue message distribution sorted by time and by sender or recipient domain. qshape(1) is bundled with the Postfix 2.1 source under the "auxiliary" director

When a spammer or worm sends mail with forged sender addresses, innocent sites are flooded with undeliverable mail notifications. This is called backscatter mail, and if your system is flooded then you will find out soon enough.