Amélioration du taux de délivrance des messages envoyés par un serveur Postfix

Si vous utilisez Postfix comme serveur de mails et que vous rencontrez un souci d’envoi de mails en nombre vers Orange.

Building a high-performance mail delivery system is one thing; building one that does not knock over other systems is a different story. Some mailers suffer from the thundering herd syndrome: they literally flood other systems with mail. Postfix tries to be a fast mailer and a good neighbor at the same time.

Pflogsumm is a log analyzer for Postfix. It can mail out a summery on a daily, weekly or monthly basis and is fully configurable. The generated report can show you patterns in email traffic so you can better determine bandwidth limitations, mail server abusers or if your mail server needs to be upgraded. Statistics can be very helpful in showing, for example, when most of your mail is sent or received or if that one mail user is sending out more than their fair share of mail. Pflogsumm will give you the ability to quickly determine what machines on your network are the top (ab)users and the proof to follow up company policies with numbers.

Pflogsumm is a single perl file and its only dependancies are perl, the perl module Date::Calc (which is probably already installed on your system) and the proper location of a Postfix log file.

pflogsumm.pl is designed to provide an over-view of postfix activity, with just enough detail to give the administrator a "heads up" for potential trouble spots. The following is an over-view of the reports produced.

SASL est un daemon qui permet l’authentification smtp avec Postfix.

Postfix is the default Mail Transfer Agent (MTA) for Ubuntu. It is in Ubuntu's main repository, which means that it receives security updates. This guide explains how to install and configure postfix and set it up as an SMTP server using a secure connection.