Linux Tutorials on the topic “email”

  • How to add two-factor authentication to Google Apps for your Domain using open source software

    Author: nowenTags: , , , Comments: 2

    How to add two-factor authentication to Google Apps for your Domain using open source software Everybody loves GMail. With Google Apps for you Domain, you can use GMail with your own domain, allowing organizations to outsource their email - and the requisite anti-spam filtering to Google. Webmail is very convenient, but for frequent travellers and those who use public wifi, it can be quite dangerous. Logging in from a kiosk or shared computer is a sure way to get your username and password stolen by a keystroke logger. Using a public WiFi system can lead to a man-in-the-middle attack. In this document we will take advantage of two open source projects to add two-factor authentication to Google Apps. The first is Gheimdall, a a TurboGears project for Google Apps SSO service. Gheimdall supports PAM and LDAP authentication natively. It also includes sample code to add new authentication methods, which made it very easy to add two-factor authentication from WiKID. WiKID is a dual-source two-factor authentication solution that uses public key cryptography to strongly authenticate users.

  • Zimbra Collaboration Suite Open Source Edition On CentOS

    Author: christensen143Tags: , , Comments: 10

    Zimbra Collaboration Suite Open Source Edition On CentOS This tutorial shows how to set up Zimbra Collaboration Suite - Open Source Edition on CentOS. This tutorial covers installation of CentOS, dependencies for ZCS and setup of Split DNS when working behind a firewall. This tutorial is based on the way I set this server up and is only a suggestion. It carries no guarantees and it is highly suggested that you do this on a test server first to verify functionality. If you don't have a test server available you should download VMWare Server 1.0 and perform this tutorial on a test virtual server.

  • Virtual Users And Domains With Postfix, MailScanner, Mailwatch & MySQL On CentOS 5.1

    Author: o.meyerTags: , , , Comments: 0

    Virtual Users And Domains With Postfix, MailScanner, Mailwatch & MySQL On CentOS 5.1 This document describes how to customize Falko's "Virtual Users And Domains" - setup for CentOS 5.1 so that it works with MailScanner and Mailwatch. The resulting system provides a web interface (Mailwatch) where you can manage quarantined emails, train SpamAssassin, edit the white- and blacklist, view configuration files and the detailed MySQL database status ...

  • Automatically Add Disclaimers To Outgoing Emails With alterMIME On Fedora 8

    Author: o.meyerTags: , , Comments: 5

    Automatically Add Disclaimers To Outgoing Emails With alterMIME On Fedora 8 This document describes how to install and configure alterMIME as a Postfix filter on a Fedora 8 system. The resulting system will automatically add disclaimers to outgoing emails.

  • Zimbra Collaboration Suite (ZCS) Open Source Edition v5.0 On Debian Etch

    Author: o.meyerTags: , , Comments: 6

    Zimbra Collaboration Suite (ZCS) Open Source Edition v5.0 On Debian Etch This document describes how to set up the Zimbra Collaboration Suite (ZCS) Open Source Edition v5.0 on Debian Etch. The resulting system provides a full featured collaboration-suite with many features that I can't list all here - please have a look at the feature list. It also comes with a nice (themeable) AJAX web interface for administration and user access.

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

    Author: tillTags: , , , Comments: 4

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

  • Converting All Your MS Outlook PST Files To Maildir Format

    Author: nicc777Tags: Comments: 3

    Converting All Your MS Outlook PST Files To Maildir Format One of the challenges you may face when converting an office from Microsoft Windows to Linux is that many people archive their e-mail in PST files. There are PST tools available, but most of them are commercial, since the PST file format is closed and protected by Microsoft. There are several non-commercial methods to achieve roughly the same goal, and in this tutorial we use IMAP (more specifically, courier-imap) to convert all our e-mails from PST to the Maildir format. The advantage of this approach is that you also lay the foundation for a new mail system, with all your old e-mails already imported the day you switch over.

  • Retrieving Emails From Remote Servers With fetchmail (Debian Etch)

    Author: Falko TimmeTags: , Comments: 9

    Retrieving Emails From Remote Servers With fetchmail (Debian Etch) Fetchmail is a program for retrieving emails from remote servers. Imagine you have five email accounts on five different servers. Of course, you don't want to connect to each of them to get your emails. This is where fetchmail comes into play. If you have a user account on a Linux server, you can make fetchmail download emails from remote servers and put them into just one mailbox (the one of your Linux user), from where you can retrieve them with your email client (e.g. Thunderbird or Outlook).

  • Importing Outlook Express Emails Into Thunderbird And Evolution

    Author: Falko TimmeTags: , Comments: 11

    Importing Outlook Express Emails Into Thunderbird And Evolution This tutorial shows how you can import Outlook Express emails, contacts, and account settings into Mozilla Thunderbird and Evolution. This is quite useful if you want to switch from Windows to Linux but don't want to lose your mails and address book. The procedure should be similar if you use Outlook instead of Outlook Express.

  • How To Install Zimbra Collaboration Suite (ZCS) On Ubuntu

    Author: Falko TimmeTags: , Comments: 9

    How To Install Zimbra Collaboration Suite (ZCS) On Ubuntu This guide shows how to install the Zimbra Collaboration Suite (ZCS) on Ubuntu 6.10 (Edgy Eft) and 6.06 (Dapper Drake) server systems. Zimbra is a full-featured, open source collaboration suite - email, group calendaring, contacts, and web document management and authoring. It has a feature-rich AJAX web interface and is compatible with clients such as Microsoft Outlook, Apple Mail, and Novell Evolution so that mail, contacts, and calendar items can be synchronised from these to the ZCS server. It can also be synchronized to many mobile devices. ZCS makes use of many existing open source projects such as Postfix, MySQL, and OpenLDAP.