Arch Linux Email Server Guide

I have spent many years trying to get a email server running the easiest way. This guide will let you setup a imap and smtp server in minutes.

Sign & Encrypt your Emails with Thunderbird/Enigmail

This tutorial will already assume you have thunderbird installed, be it your distro’s package or the Mozilla Builds. We will also assume you have installed the Enigmail extension, luckily for me openSuse provides this with their default Thunderbird install from their repo’s.

Download messages from other Email Accounts

You guys can download messages from other Email Accounts using Gmail's Mail Fetcher (It has got restrictions up to only five other Email Accounts). Setting up Mail Fetcher is Easy as well as free to use, but for this to happen your email accounts must support POP.

Is That Email Attachment Clean or Infected with some Virus ?

Say you have received a suspicious looking file as an email attachment that may or may not be infected with a virus.

If that email is from some unknown source, you are very likely to delete it immediately but what do you do if that file attachment has come from a friend or a trusted colleague ?

Simple, use email. Here’s what you can do to make sure that the attached file is safe and won’t harm your computer.

Create your own Secure Email Server

So let’s say you have registered your domain, set up your own nameserver, and set up a webserver for your domain. Now you would like to set up an email server so you can have email addresses for your domain? Well here’s how you do just that on Redhat based Linux distributions (CentOS, Fedora, etc).

Create personal mailing lists through contact manager

"You can create custom "groups" of contacts so you don't have to remember individual names or email addresses. You don't create a true mailing list, per se -- it's just a simple way to email a handful of people at once."

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Configuring SendMail To Act As A SmartHost & To Rewrite From-Address

This tutorial explains how to configure a sendmail server to forward all mails generated from localhost to another SMTP server for sending mails to remote recipients. Also it explains how to rewrite the from address of user@localhost.localdomain to user@example.com.

IMAP - getting Dovecot running

If you're reading this, you use email. You probably have more than one email address. I do. I have many. I run 13 domains, plus some more for friends off my two mail servers. If you're like me, you use POP to download your mail to your computer and read it there. POP works best when you use just one computer.

In this article, I will show you how I installed Dovecot and configured it so I could securely get my email. This involves setting up the certificates and configuring Dovecot.

Using GPG with Gmail to Become an Ubuntero

Encrypting and signing email has its advantages. Linux has one of the best digital encrypter/signer. It's called GPG (Gnu Privacy Guard) and is solely text based, though like apt-get, there are front-ends which aren't entirely necessary (including SeaHorse). GPG can be used to encrypt files, emails, and text. It can also be used to sign documents, that is to show that the email, document, file, or whatever did actually originate from yourself and was not tampered with before the recipient received it. How does that sound?

Announcing the OpenBSD MailServer Project

Following the success of the PFW iso images, I have now released a MailServer following a similar concept. With this MailServer, you will get a state of the art open source mailserver using:

* Posffix MTA
* Dovecot POP/IMAP Server
* SpamAssassin and Clam AV
* IlohaMail webmail interface
* Webmail interface to manage users, domains and forwardings

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Hotmail Delivers Far Fewer Emails with Attachments

It has long been suspected that there is a silent policy that makes Hotmail automatically delete the majority of attachments to save on bandwidth and internal disk space...

Retrieving Emails From Remote Servers With getmail (Debian Etch)

Getmail is a program for retrieving emails from remote servers; it is very similar to fetchmail, but more flexible. For example, it can be configured to deliver mails directly to a Maildir or mbox mailbox without the need for an MTA such as Postfix, but of course it can also pipe the mails through an MTA if you want. Getmail can use so called filters such as SpamAssassin and ClamAV to scan the mails, and you can even tell getmail to delete mails on the original server only after a certain number of days.

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Retrieving Emails From Remote Servers With fetchmail

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).

Or imagine you have an email account at a provider that doesn't do spam- and virus filtering. In that case you could use fetchmail to download the mails to your own server and pipe them through spam- and virus filters (e.g. SpamAssassin and ClamAV) before you download the mails with your email client.

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How to Check if Your WebMail Account has been Hacked

Normally when someone compromises a WebMail account they'll pilfer through all your messages and save anything they're interested in keeping. Unless the intruder is really dumb, and sometimes they are, they'll change all the messages back to unread (bold) so you won't notice their presence. What you can do ahead of time is set a kind of a virtual silent alarm on your account. Here's how.

Send Later (Thunderbird)

The Send Later Thunderbird extension lets you schedule the delivery of emails composed in Thunderbird.

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Mozilla Releases Thunderbird 2.0.0

The Mozilla Corporation has released Thunderbird 2.0.0.

Yahoo opens up Web mail APIs

Yahoo is opening up its Web mail platform to external developers, so that they can create plug-ins, utilities and applications for the popular Yahoo Mail service.

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Yahoo Mail Goes Infinite

Yahoo has announced that Yahoo Mail's new limit is...well, it has no limit. You get infinite space for your e-mail. Let me repeat: infinite space. As in you can store all your e-mail. Even if you have an unlimited amount of it.

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Time For Higher Security In Digital Email Signatures

It’s time to step it up with security when signing emails digitally with your GnuPG/OpenPGP key. For the longest time, SHA-1 has been the default hash for signing text documents. However, SHA-1, a 160-bit strength hashing algorithm has been broken.

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Using GPG With Mozilla Thunderbird

It’s a morning of security. What can I say? I just updated my GPG keypair, and after hitting “publish”, I thought to myself “Why not write a quick tutorial on using GPG with Thunderbird?”. So, here it is.