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Search results for Fight Image Spam With FuzzyOCR And SpamAssassin On Debian/Ubuntu

Debian

Fight Image Spam With FuzzyOCR And SpamAssassin On Debian/Ubuntu

Post date: February 15, 2007, 18:02 Category: Software Views: 3241 Comments
Tutorial quote: This tutorial describes how to scan emails for image spam with FuzzyOCR. FuzzyOCR is a plugin for SpamAssassin which is aimed at unsolicited bulk mail containing images as the main content carrier. Using different methods, it analyzes the content and properties of images to distinguish between normal mails (ham) and spam mails. FuzzyOCR tries to keep the system load low by scanning only mails that have not already been categorized as spam by SpamAssassin, thus avoiding unnecessary work.
Debian

Fight Image Spam With FuzzyOCR And SpamAssassin On Debian Lenny

Post date: April 29, 2010, 14:04 Category: Installing Views: 2712 Comments
Tutorial quote: This tutorial describes how to scan emails for image spam with FuzzyOCR on a Debian Lenny server. FuzzyOCR is a plugin for SpamAssassin which is aimed at unsolicited bulk mail containing images as the main content carrier. Using different methods, it analyzes the content and properties of images to distinguish between normal mails (ham) and spam mails. FuzzyOCR tries to keep the system load low by scanning only mails that have not already been categorized as spam by SpamAssassin, thus avoiding unnecessary work.
Debian

Filtering PDF-/XLS-/Image-Spam With ClamAV (And ISPConfig) On Debian/Ubuntu

Post date: July 24, 2007, 02:07 Category: Security Views: 3343 Comments
Tutorial quote: There is currently a lot of spam where the spam information is attached as .pdf or .xls files, sometime also hidden inside a .zip file. While these spam mails are not easy to catch with e.g. SpamAssassin or a Bayes filter, the ClamAV virus scanner can catch them easily when it is fed with the correct signatures as ClamAV is built to scan mail attachments.
Debian

How to filter spam with Spamassassin and Postfix in Debian

Post date: April 20, 2008, 18:04 Category: Network Views: 3501 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.

Linux

SpamAssassin and Amavisd

Post date: April 14, 2005, 13:04 Category: Network Views: 2705 Comments
Tutorial quote: The bad news is, it's SpamAssassin, not SpammerAssassin. The good news is it kills spam quite effectively, and fits nicely into an anti-spam, anti-virus gateway. This article, which shows how to use SpamAssassin with Postfix, is the first in a series on building an anti-spam and anti-virus gateway. This gateway works equally well for a single PC, or for a large network.
Linux

How To Block Spam Before It Enters The Server (Postfix)

Post date: June 4, 2007, 23:06 Category: Security Views: 4310 Comments
Tutorial quote: 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.
Linux

Tuneups and Tweaks for the Better Spam-Trap

Post date: April 14, 2005, 13:04 Category: Network Views: 2623 Comments
Tutorial quote: In parts 1 and 2 of our thrilling "Building an Anti-Virus/Anti-Spam Gateway" series, we covered the basic steps for setting up SpamAssassin and Clam Anti-virus with Postfix. This installment is devoted to testing and tweaking, and creating whitelists in Amavisd-new. Whitelists are essential when you set up any kind of spam filtering: It's the best way to make sure your wanted mail gets through.
Debian

Installing ASSP (Anti-Spam SMTP Proxy) On Ubuntu Server 10.04 / Debian 5.0

Post date: March 15, 2011, 12:03 Category: Installing Views: 3493 Comments
Tutorial quote: This How-To document guides you through installing ASSP (Anti-Spam SMTP Proxy) on an Ubuntu 10.04 (LTS) Server or Debian 5.0 in the simplest way possible. It *may* work on later versions but I have no way of knowing how these instructions will work for you. Installing Ubuntu/Debian is beyond the scope of this document and it is assumed you already have the core Ubuntu/Debian OS with no predefined software collections installed.
Debian

Installing Maia Mailguard On Debian Lenny (Virtual Users/Domains With Postfix/MySQL)

Post date: July 8, 2010, 10:07 Category: Installing Views: 3876 Comments
Tutorial quote: This guide explains how to install Maia Mailguard, a spam and virus management system, on a Debian Lenny mailserver. Maia Mailguard is a web-based interface and management system based on the popular amavisd-new email scanner and SpamAssassin. Written in Perl and PHP, Maia Mailguard gives end-users control over how their mail is processed by virus scanners and spam filters, while giving mail administrators the power to configure site-wide defaults and limits.
Ubuntu

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

Post date: July 16, 2006, 16:07 Category: Network Views: 6028 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.
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