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Search results for How To Implement SPF In Postfix

Ubuntu

Virtual Users And Domains With Postfix, Courier, MySQL And SquirrelMail (Ubuntu 8.04 LTS)

Post date: May 22, 2008, 09:05 Category: Installing Views: 3397 Comments
Tutorial quote: This document describes how to install a Postfix mail server based that is based on virtual users and domains, i.e. users and domains that are in a MySQL database. I will 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. Passwords are stored in encrypted form in the database. In addition to that, this tutorial covers the installation of Amavisd, SpamAssassin and ClamAV so that emails will be scanned for spam and viruses. I will also show how to install SquirrelMail as a webmail interface so that users can read and send emails and change their passwords.
Linux

Postfix with dkfilter (DomainKeys Implementation)

Post date: December 7, 2006, 21:12 Category: Security Views: 4419 Comments
Tutorial quote: DomainKeys is an anti-spam software application in development at Yahoo that uses a form of public key cryptography to authenticate the sender's domain. dkfilter is an SMTP-proxy designed for Postfix. It implements DomainKeys message signing and verification. It comprises two separate filters, an outbound filter for signing outgoing email on port 587, and an inbound filter for verifying signatures of incoming email on port 25. This document shows step-by-step how to install dkfilter for Postfix to deploy DomainKeys signing and verification.
FreeBSD

Configuring virtual domains with Cyrus+Postfix in FreeBSD 5.4

Post date: December 1, 2005, 03:12 Category: Software Views: 4959 Comments
Tutorial quote: Cyrus IMAP is an efficient IMAP server capable of handling a large number of accounts. Its biggest drawback is getting it installed and configured. This tutorial is a step-by-step guide on how to use Cyrus with the Postfix mail transfer agent (MTA). I tested these instructions with FreeBSD 5.4.

Postfix is a replacement for sendmail, the stock MTA that comes in FreeBSD. It is easier to configure and manage than sendmail. If you depend on sendmail, you can still look at the article for the Cyrus part, but you'll need to look elsewhere for the MTA configuration.

Unless otherwise instructed, perform all operations in this tutorial as root. You will need to use the port system. If you are new to it, check Chapter 4 of the FreeBSD Handbook.
Solaris

Installing Postfix and Dovecot Under Opensolaris

Post date: August 17, 2009, 23:08 Category: Installing Views: 5427 Comments
Tutorial quote: Replace sendmail with this easy to install and configure system. Postfix and Dovecot provide a powerful and easy to manage mail system enabling SMTP, IMAP, and POP3. Also included is integration of the powerful spam killer Spamassassin.
Ubuntu

Postfix Spam Filter using Ubuntu Dapper, MailScanner and ClamAV(beta)

Post date: July 16, 2006, 16:07 Category: Network Views: 6354 Comments
Tutorial quote: This is a similar version of the HOWTO that can be found here: http://www200.pair.com/mecham/spam/spamfilter20050628.html. Except for using Ubuntu Server instead of Debian and MailScanner instead of Amavisd, the Postfix, Rayzor, Pyzor, DCC and ClamAV sections are almost the same.
Debian

How to filter spam with Spamassassin and Postfix in Debian

Post date: April 20, 2008, 18:04 Category: Network Views: 3805 Comments
Tutorial quote: We have already discussed how to install mail server with postfix+Devcot+SASL +Squirrel Mail in this article we will see how to add spam filter for postfix mail server.Apache SpamAssassin is an extensible email filter that is used to identify spam. Once identified, the mail can then be optionally tagged as spam for later filtering. It provides a command line tool to perform filtering, a client-server system to filter large volumes of mail, and Mail::SpamAssassin, a set of Perl modules allowing Apache
SpamAssassin to be used in a wide variety of email systems.

Mandriva

Virtual Users & Domains With Postfix, MySQL & SquirrelMail (Mandriva 2008.1)

Post date: April 15, 2008, 11:04 Category: Installing Views: 3521 Comments
Tutorial quote: This document describes how to install a Postfix mail server that is based on virtual users and domains, i.e. users and domains that are in a MySQL database. I will also demonstrate the installation and configuration of Courier (Courier-POP3, Courier-IMAP), so that Courier can authenticate against the same MySQL database Postfix uses. In addition to that, this tutorial covers the installation of Amavisd, SpamAssassin and ClamAV so that emails will be scanned for spam and viruses. I will also show how to install SquirrelMail as a webmail interface so that users can read and send emails and change their passwords.
Ubuntu

Virtual Users/Domains With Postfix, Courier, MySQL, SquirrelMail (Ubuntu 9.04)

Post date: June 11, 2009, 12:06 Category: Installing Views: 3205 Comments
Tutorial quote: This document describes how to install a Postfix mail server 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. In addition to that, this tutorial covers the installation of Amavisd, SpamAssassin and ClamAV so that emails will be scanned for spam and viruses. I will also show how to install SquirrelMail as a webmail interface so that users can read and send emails and change their passwords.
Debian

Adding Disclaimers To Outgoing Emails With alterMIME (Postfix On Debian Lenny)

Post date: September 21, 2010, 18:09 Category: Installing Views: 11514 Comments
Tutorial quote: This tutorial shows how to install and use alterMIME. alterMIME is a tool that can automatically add a disclaimer to emails. In this article I will explain how to install it as a Postfix filter on Debian Lenny.
Unix+clones

SpamAssassin, ClamAV and Procmail Howto

Post date: April 16, 2005, 00:04 Category: Network Views: 3363 Comments
Tutorial quote: This document describes how to install SpamAssassin (for filtering SPAM) and ClamAV (for filtering viruses, trojans, worms, etc.) and how to invoke them by using procmail recipes. It is suitable for scenarios where Sendmail or Postfix deliver emails to local users. It should work (maybe with slight changes concerning paths etc.) on all *nix operating systems. I tested it on Debian Woody so far.

In the end you will have a system where Sendmail or Postfix deliver emails to a local user; the emails are passed to procmail which invokes SpamAssassin and ClamAV in order to filter the emails before they arrive in the user's inbox. However, the installation of Sendmail and Postfix are not covered in this document.

This howto is meant as a practical guide.
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