Linux Tutorials on the topic “postfix”
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How To Implement SPF In Postfix
Author: Falko Timme • Tags: postfix, antivirus • Comments: 18How To Implement SPF In Postfix This tutorial shows how to implement SPF (Sender Policy Framework) in a Postfix 2.x installation. The Sender Policy Framework is an open standard specifying a technical method to prevent sender address forgery. There are lots of SPF extensions and patches available for Postfix, but most require that you recompile Postfix. Therefore we will install the postfix-policyd-spf-perl package from openspf.org which is a Perl package and can be implemented in existing Postfix installations (no Postfix compilation required).
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DSPAM With Embedded ClamAV Integrated Into Postfix With Virtual Users And Domains
Author: o.meyer •
Tags: antivirus, debian, postfix •
Comments: 1 DSPAM With Embedded ClamAV Integrated Into Postfix With Virtual Users And Domains This document describes how to integrate DSPAM with embedded ClamAV into a mail server based on Postfix featuring virtual users and domains, i.e. users and domains that are in a MySQL database. It rests upon parts of the howto Virtual Users And Domains With Postfix, Courier And MySQL (Debian Etch) from Falko Timme.
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Postfix Monitoring With Mailgraph And pflogsumm On Debian Etch
Author: Falko Timme •
Tags: debian, monitoring, postfix •
Comments: 4 Postfix Monitoring With Mailgraph And pflogsumm On Debian Etch This article describes how you can monitor your Postfix mailserver with the tools Mailgraph and pflogsumm. Mailgraph creates daily, weekly, monthly, and yearly graphs of sent, received, bounced, and rejected emails and also of spam and viruses, if SpamAssassin and ClamAV are integrated into Postfix (e.g. using amavisd-new). These graphs can be accessed with a browser, whereas pflogsumm ("Postfix Log Entry Summarizer") can be used to send reports of Postfix activity per email.
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How To Block Spam Before It Enters The Server (Postfix)
Author: Falko Timme • Tags: antivirus, postfix • Comments: 14How To Block Spam Before It Enters The Server (Postfix) The last few weeks have seen a dramatic increase in spam (once again). Estimates say that spam makes now up for 80 - 90% of all emails, and many mail servers have difficulties in managing the additional load caused by the latest spam, and spam filters such as SpamAssassin do not recognize large parts of that spam as they did before. Fortunately, we can block a big amount of that spam at the MTA level, for example by using blacklists, running tests on the sender and recipient domains, etc. An additional benefit of doing this is that it lowers the load on the mail servers because the (resource-hungry) spamfilters have to look at less emails.
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Virtual Users And Domains With Postfix, Courier And MySQL (Debian Etch)
Author: Falko Timme •
Tags: antivirus, debian, postfix •
Comments: 21 Virtual Users And Domains With Postfix, Courier And MySQL (Debian Etch)This document describes how to install a mail server based on Postfix that is based on virtual users and domains, i.e. users and domains that are in a MySQL database. I'll also demonstrate the installation and configuration of Courier (Courier-POP3, Courier-IMAP), so that Courier can authenticate against the same MySQL database Postfix uses.
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Virtual Users With Postfix, PostfixAdmin, Courier, Mailscanner, ClamAV On CentOS
Author: thim • Tags: postfix, antivirus, centos • Comments: 5Virtual Users With Postfix, PostfixAdmin, Courier, Mailscanner, ClamAV On CentOS In this how to I will explain how to setup a Postfix virtual mailserver with Courier-IMAP, Maildrop and Postfix Admin GUI. We will secure our mailserver with Mailscanner and Clamav as anti-virus and Spamassassin as anti-spam.
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Virtual Users And Domains With Postfix, Courier And MySQL (Ubuntu 6.10 Edgy Eft)
Author: Falko Timme •
Tags: antivirus, postfix, ubuntu •
Comments: 5 Virtual Users And Domains With Postfix, Courier And MySQL (Ubuntu 6.10 Edgy Eft) This document describes how to install a mail server based on Postfix that is based on virtual users and domains, i.e. users and domains that are in a MySQL database. I'll also demonstrate the installation and configuration of Courier (Courier-POP3, Courier-IMAP), so that Courier can authenticate against the same MySQL database Postfix uses. The resulting Postfix server is capable of SMTP-AUTH and TLS and quota. In addition to that, this tutorial covers the installation of Amavisd, SpamAssassin and ClamAV so that emails will be scanned for spam and viruses.
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Set Up Ubuntu-Server 6.10 As A Firewall/Gateway For Your Small Business Environment
Author: tycho • Tags: antivirus, apache, control panels, postfix, ubuntu • Comments: 5Set Up Ubuntu-Server 6.10 As A Firewall/Gateway For Your Small Business Environment This tutorial shows how to set up a Ubuntu 6.10 server ("Edgy Eft") as a firewall and gateway for small/medium networks. The article covers the installation/configuration of services such as Shorewall, NAT, caching nameserver, DHCP server, VPN server, Webmin, Munin, Apache, Squirrelmail, Postfix, Courier IMAP and POP3, SpamAssassin, ClamAV, and many more.
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Integrating amavisd-new Into Postfix For Spam- And Virus-Scanning
Author: Falko Timme • Tags: antivirus, debian, postfix, ubuntu • Comments: 2Integrating amavisd-new Into Postfix For Spam- And Virus-Scanning This article shows how to integrate amavisd-new into a Postfix mail server for spam- and virus-scanning. amavisd-new is a high-performance interface between MTAs such as Postfix and content checkers: virus scanners, and/or SpamAssassin. We will use ClamAV for virus scanning and SpamAssassin for spam scanning in this tutorial.
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Autoresponders to accompany Virtual Users and Domains with Postfix, Courier and MySQL
Author: todgerme • Tags: postfix • Comments: 5Autoresponders to accompany Virtual Users and Domains with Postfix, Courier and MySQL This guide focuses on making Yaa! (Yet Another Autoresponder!) work with Debian Sarge and the virtual users on Postfix tutorial (see http://www.howtoforge.com/virtual_postfix_mysql_quota_courier). The first thing to understand about the guide is that it uses the Virtual Delivery Agent (VDA) and as a result any of the auto responders that you could use by passing them to a pipe via a .forward file simply won't work as the VDA does not support .forward expansions. This limitation can be overcome via Procmail/Maildrop delivery but that is messy and slower especially for mail systems that are heavily used. The simple answer is Yaa!
