Tools Web Interface / GUI for Postfix Mail Server
What is Postfix? This is the mail server that was life in the IBM research area as an alternative to widely-used Sendmail. Postfix attempts to be fast, easy to administer, and secure. Outside has a taste of Sendmail, but inside is completely different. Http://www.postfix.org/ official site management and configuration tools for graphics postfix The purpose of this paper is to show you some free tools that exist to manage an MTA or mail transfer agent like Postfix. Postfix Admin Postfix Admin is a tool created Web-based management for Postfix. It is a PHP based application that handles Style Virtual Domains and Users that are stored in databases such as MySQL or PostgreSQL free. Launched in December ... Read full article »
Filed under: Postfix
Security Update Postfix Mail Server
Postfix MTA has been updated with a new patch to fix some security bugs medium impact level. Of these vulnerabilities addressed include checking the wrong mailbox owner or user's mail directory. In certain configurations, the vulnerability allows users to add data All postfix should upgrade to these packages. How do I update Postfix on Linux Debian / Ubuntu First we update the repository database, and then install the corrected package Postfix: deathbian: ~ # apt-get update deathbian: ~ # apt-get upgrade as upgrade Postfix on Linux RHEL / CentOS Under Linux RHEL / CentOS 5.x, enter the following command: [root @ redhat ~] # yum update under RHEL <= 4.x, use this command: [root @ redhat ~] # up2date-u ... Read the full article "
Filed under: Postfix
Script to delete the mail queue Postfix
A few months ago, a client with a Postfix mail server running on RedHat (or Debian, I do not remember) began to have problems with the mail queue (mail queue). Apparently a user's PC was infected with a spambot, which was sending a huge amount of spam through the mail server compaï ¿½ ia. Immunize the infected PC was only the beginning, as in the tail of the Postfix MTA +20,000 still were the emails that had sent the spam bot, you do to delete all those emails? On the one hand the server was working at full capacity to process the mail queue, this includes spam and other legitimate users. Then we went down to work quietly postfix daemon ... Read the full article »
Delete spam from the mail server with Postfix
This is a simple how to on how to achieve restrict a lot of SPAM, for this we use Postfix's own utilities. The problem with most spam or junk mail is that these emails come from invalid addresses or domains. With that said, using smtpd_helo_restrictions get rid of over half the spam, because if the helo is invalid, there is no similar or refused. If you enter as smtpd_sender_restrictions restrictions, we see that there el@dominio.com the MAIL FROM checks and several more. smtpd_sender_restrictions: reject_unknown_sender_domain -> Make a decision and if there de@dominio.com mail undone. reject_non_fqdn_sender -> Requires either FQDN smtpd_helo_restrictions: reject_invalid_hostname -> Must be valid reject_unknown_hostname -> That helo reject_non_fqdn_hostname must exist -> Must be FQDN For example greets Postfix ... Read the full article »
Filed under: Articles , HowTo , Mail Transfer Agent , MTA , Postfix
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