The following five add-ons have recently been added to the Mozilla Thunderbird extensions repository at the Mozilla website. Some of them are not yet compatible with the latest beta of Thunderbird 3. The email user needs to force compatibility in this case with the Nightly Tester Tools add-on (or edit the compatibility setting in the xpi file manually).

Extra Folder Columns

Thunderbird 2 users were able to display extra columns in the mail folder sidebar. These columns could display the size of each folder on the local hard drive, the total number of emails contained within and the amount of emails that have not been read yet. Not so with Thunderbird 3 which does not provide these additional columns for the folders at all.

Extra Folder Columns has been designed for Thunderbird 3 to add those three columns again to the web browser. All three data columns will be displayed by default but the user has the option to remove them individually so that only the columns are displayed that are of interest to the Thunderbird user.

download Extra Folder Columns

Show In/Out

Show In/Out has been designed for Thunderbird users who like to move email conversations, that is all incoming and outgoing emails, to one folder to have access to all emails of a conversation directly. Thunderbird by default does not show if an email was an incoming or outgoing email. That’s where Show In/Out steps in. It adds two new columns to the main window of Thunderbird. The first displays an icon showcasing if the email was incoming or outgoing, the second displays the name of the sender or recipient depending if the email was incoming or outgoing.

The developer has designed the add-on to replace the sender and recipient columns in the Thunderbird main window helping users who like to move all incoming and outgoing emails into the same folder.

download Show In/Out

ThunderBirthDay

ThunderBirthday will display the birthdays of email contacts in the Lightning calendar add-on. The extension has two dependencies that need to be installed before it can be installed. It first needs the Lighting calendar add-on for Thunderbird and second the MoreFunctionsForAddressBook add-on which adds the fields “birthday”, “birthmonth” and “birthyear” to the email address book.

Create a new calendar in Lightning by clicking File>New>Calendar… in the menu bar. Then choose “On My Computer” as location and “Birthdays from the Thunderbird addressbook” as type for your calendar. Also specify the address book to use as a source for birthdays. Finally choose a name for the new calendar.

Now open the “Edit Card” dialog of an address book card and set the birthday in the “Other data” tab. Note that these changes don’t take effect in the calendar until it gets reloaded. To do this either restart Thunderbird or right click on a calendar from the list, then choose “Reload Remote Calendars”.

Also note that the events generated by ThunderBirthDay cannot be modified with Lightning for the moment. Maybe future versions of the extension will be bidirectional.

download ThunderBirthDay

Forward

Thunderbird by default forwards email messages as attachments. This can be changed in Tools → Options → Composition → General so that the email messages are forwarded as inline messages instead. There is also an option in the Message menu to select either attachment or inline as the method of forwarding the selected emails in Thunderbird. This add-on simply moves this option to more prominent locations: The Forward button and Message context menus.

download Forward

Border Colors

If you have multiple email accounts configured in Thunderbird you might know that there is a chance that you send an email to a recipient from a wrong account. Border Colors is a very simple add-on for Thunderbird that color codes each account that has been configured in the email client. The colors have to be selected after the installation of the add-on as black is being used as the default color for all email accounts.

After configuration a border in the color that has been chosen during configuration will be shown when writing emails. A switch between accounts in the compose email window will also change the border color accordingly.

download Bordercolors

I hope you enjoyed this article. Please write a comment if you would like to have your say on a specific add-on mentioned in this article or would like to add one of your favorite Thunderbird add-ons so that other users can benefit from it as well.

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The add-in is compatible with Microsoft Outlook 2007 and will install a new toolbar into the application after installation. It will also install various runtimes that are needed to run the Outlook add-in.

The options to export the data from Microsoft Outlook is then available from the new toolbar. It is here possible to export Outlook emails, notes, appointments, contacts or tasks into the following formats: MSG, unicode MSG, RTF, TXT, CSV, ICS, vCard, HTML, XML

The user can either select an Outlook folder or single items for the export of the data. Outlook Data Export can be downloaded from the program’s page over at the Codeplex website. It is only compatible with Microsoft Office 2007.

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The process is very simply. The Thunderbird add-on will automatically display an option to unsubscribe from support mailing lists in the header of the emails that are send to the accounts that are managed in the desktop email client.

The Thunderbird user needs to click on the unsubscribe link in the header to initiate the process of unsubscribing from the mailing lists. This will display a prompt informing the user that the add-on will open a new email message which, when send by the user, will unsubscribe the email address from the mailing list.

The email usually consists of an email address of the service that send the mailing list email and subject unsubscribe in the email subject with no body text at all. The unsubscribe link is only displayed for mailing lists that use the Inxmail email marketing service which is used by global brands such as Coca Cola. The add-on is compatible with Thunderbird 2 and Thunderbird 3 up to beta 3 which excludes the latest release of Thunderbird 3 beta. The add-on can however be forced to be compatible with the Nightly Tester Tools. A download is available at the Thunderbird website over at Mozilla.

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Email identities can be created in the account settings of the Thunderbird email client. The account settings can be reached from the top Tools menu. The user then needs to select one of the configured email accounts. A button Manage Identities should appear in the menu that is also displaying various information about the selected email account.

In there it is possible to add or edit email identities. It is for example possible to select a different SMTP server, signature or vcard, change mail folders, use a digital signature and specify a different email address. The email address can be the same but it does not have to be. It is even possible to add a completely unrelated email address for that new identity. You could theoretically configure the identity to send email that looks like its coming from any email account in the world (enter test@example.com for instance and send the mail to one of your accounts to see how it works).

When you write a new message, Thunderbird uses the default identity for the account you are working in. When you reply to a message, Thunderbird uses the identity that matches the address the message was originally sent to, if it can find a match in the account you are working in.

You can select any identity from any of your accounts when replying, forwarding or composing a new message by selecting it in the From drop down list box. If desired, you can also create a unique signature, specify the draft folder, what folder your copy of the sent message should be stored in, and what reply-to address should be used for each identity.

Additional information about email identities in Thunderbird are available a the Mozillazine website.

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Most email users should already be familiar with the tips offered at the Gmail blog. Here are the five tips posted at the website:

• Remember to sign out
• Be careful about sending certain sensitive information via email
• Enable “Always use HTTPS.”
• Be wary of unexpected attachments.
• Make sure your account recovery information is up-to-date

Two of the five tips (being suspicious of attachments and careful about sending out information) are valid for all email accounts no matter where they are hosted and whether they are accessed from a website or desktop email software. These programs on the other hand make the tips one and three unnecessary. The email recovery tip on the other hand makes sense for all Gmail users. Gmail offers an option to add another email address to the account which can be used to retrieve Gmail login information or retake an account after it has been hacked by an attacker.

Do you think those tips are sufficient to protect email accounts or would you add other tips to the list?

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Fortunately there is a tool for that. The tool? Spamassassin. Spamassassin is a very versatile SPAM tool that is part of the Apache Foundation. Spamassassin uses numerous means to detect SPAM including: DNS and Checksum based SPAM detection as well as Bayesian filtering, external programs, black lists, and online databases. These tools together make for a fairly powerful detection system.

In this article you are going to see how to install and configure Spamassassin to work in conjunction with Postfix to further enhance your email server.

Installing Spamassassin

Obviously the first thing you need to do is install Spamassassin. You will find Spamassassin in the Ubuntu repositories. And since this entire series has been laid on top of a Ubuntu Server installation, that is quite convenient. So, to install Spamassassin, open up your terminal window and issue the following command:

sudo apt-get install spamassassin

There may or may not be some dependencies to install in order for the Spamassassin  installation to complete. Go ahead and OK those. Once this installation is complete you are ready to start configuring.

Configuration

Before we actually get to the configuration it is important to understand the SPAM scoring system. With Spamassassin, messages are tagged as SPAM only when they have enough SPAM-matching characteristics (according to a scoring level). The scoring level is 0-5, however it’s not as simple as saying a 0 means it is 0% SPAM. The system is set up so that every characteristic can add to the overall score. For example a message tested to find a base64 attachment does not have a file name filtered with both bayes+net will add 0.224 to the over all score of the message. When all of the characteristic scores are added up, if they exceed the default score you have set in the configuration file, that message is considered SPAM.

Now that you have a basic understand of how the scoring system works. Let’s start configuring Spamassassin.

The main configuration file is /etc/spamassassin/local.cf. The first option you want to configure is the default score. Look for the line:

# required_score 5.0

The first thing you want to do is uncomment that line (by removing the “#” character) and then changing the score. A score of 5 is pretty high and sure to be SPAM. Understand the more you lower that score the likely you are of missing message messages that are tagged false-positives. A score of 3.5 is a fairly reliable score that will catch a lot of SPAM but not a lot of false positives.

Above this line are a couple of other options that are important. The first is the option to set the option:

report_safe

To 0. This option can be set to either 0 or 1. A zero means that if a message is found to be SPAM the message will not be deleted, but instead the subject line will be rewritten to include a message marking it as SPAM.  This is handy to prevent users from losing important messages to false positives. This also allows you to set a lower score threshold.

To do this first look for the line:

# report_safe 1

Uncomment this line by removing the “#” character and then change the “1″ to “0″ (no quotes).

The next step is to uncomment the line:

# rewrite_header Subject *****SPAM*****

Now you can alter the “*****SPAM*****” section of this line to reflect what you’d prefer it to say. Just make sure it is clear to your users that a message with this rewritten subject line is most likely SPAM.

Now restart the Spamassassin daemon with the command:

sudo /etc/init.d/spamassassin restart

Configure Postfix

The last step is to set up Postfix to use Spamassassin. To do this open up the file /etc/postfix/master.cf and look for the line:

smtp     inet    n   –   –   –   –   smtpd

You need to alter this line to look like:

smtp      inet   n   -   -   -   -   smtpd -o content_filter=spamassassin

Finally, at the end of this file add the following:

spamassassin
unix - n n - - pipe
flags=R
user=spamd
argv=/usr/bin/spamc
-e /usr/sbin/sendmail
-oi -f ${sender} ${recipient}

Now all you need to do is restart Postfix with the command:

sudo /etc/init.d/postfix restart

Your mail server should now be scoring incoming message as SPAM or HAM.

Final thoughts

The mail server is a tricky beast. You have to ensure that users are getting their mail, but you have to make sure they aren’t receive SPAM or viruses. After completing this series of articles, you should have a pretty solid server running that will send out mail that is safe for users eyes.

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The Outlook Duplicate Items Remover is a free program for the Windows operating system that can clear – or to be more precise move – duplicate items in Microsoft Outlook. It scans the Outlook contacts, notes, appointments, tasks and emails for duplicate items. This is done by comparing specific variables. For email contacts to be duplicate for example they need to match the first name, last name, company name and email address.

The Outlook software moves all duplicate items into the ODIR_duplicate items folder where they can be processed further. The program works quite well although some Outlook users might find it a bit to limiting as there is no way to change the variables that are compared to find duplicates. Outlook Duplicate Items Remover would for instance fail to find a duplicate contact entry if the name and company matches but not the email.

Outlook users can download Outlook Duplicate Items Remover from the developer’s website.

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Probably the most popular is the configuration of Gmail in a desktop email software program like Microsoft Outlook or Mozilla Thunderbird. This gets rid of any problems the user might experience in the Gmail web interface and is usually recommended for users who experience Gmail login problems.

Users who want to configure Gmail in a desktop email program can look at the support page at the Gmail website to find instructions for several email clients.

Gmail login problems can also be related to the account, for instance when the user forgot the Gmail password or username. A Gmail help page is available that can aid the user in retrieving this data so that a Gmail login once again is possible with that account.

Users looking for the main Gmail login page can visit this url to log into Gmail right now.

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In this article you are going to learn how to install Postfix on your already running Ubuntu Server 9.04. I am going to assume you have it networked and have a domain registered that you want to use. At the end of this article you should have a working mail server, ready for use.

NOTE: For the purposes of this article, I will use the fake domain “www.ubuntumail.net”. You will want to use your domain in place of that.

The first step is to install the software necessary. Since you already have LAMP up and running all you will need to do is install Postfix and it’s dependencies. To do this open up a terminal and issue the following command:

sudo apt-get install postfix

The installation will not only install Postfix, but will start the Postfix daemon for you. You will most likely want to test this installation by running the old telnet test like so:

telnet localhost 25

You should see something like:
Trying 127.0.0.1...
Connected to www.ubuntumail.net.
Escape character is '^]'.
220 localhost.localdomain ESMTP Postfix (Ubuntu)

If you do, success! Now you are ready to take care of the configuration steps.

Configuration

There is only one file you need to deal with in Postfix. That file is /etc/postfix/main.cf. There really isn’t much to configuring this file (for a basic installation – which is all we are dealing with right now).

To set your Postfix installation up for your domain you will want to open that file for editing like so:

sudo nano /etc/postfix/main.cf

The above command opens main.cf in the Nano editor. What you need to look for is this section:

myhostname = ubuntumail
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = ubuntumail.net, ubuntumail, localhost.localdomain, localhost
relayhost =
#mynetworks = 127.0.0.0/8
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_command = procmail -a "$EXTENSION"
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all

As you can see, I have already configured the above section to work with our sample domain. You will need to go through the above section and insert your domain where you see ubuntumail.net. You will want to pay close attention to the mydestination line. As you can see that line contains:

ubuntumail.net, ubuntumail, localhost.localdomain

This helps to avoid mailloops in Postfix.

Some people also like to use the mydomain parameter, but since mydomain is taken from $myhostname by removing the first part (unless that would cause the domain to be a top-level domain) it can be redundant. If, however, your mail server serves your entire domain, you will need to use the mydomain parameter. For that you would insert:

mydomain = ubuntumail.net

at the top of the section shown above.

Once you have that configuration saved, restart Postfix with the command:

sudo /etc/init.d/postfix reload

To reload the mail server.

Users

As this is a Linux box, you will want to make sure you have a user created for every email address you need to serve up. So create your users with your favorite user creation tool. Since you are most likely installing on a Ubuntu Server (sans GUI), you will be using the useradd command. You can accomplish this with the command:

sudo useradd -m USERNAME

Where USERNAME is the actual username you want to use. Next you will need to give the user a password with the command:

sudo passwd USERNAME

Where USERNAME is the actual username you want to use. You will be prompted to enter the password twice.

After you have entered the users, you can then test the mail server by sending an email from an external source to see if it arrives. If there is a problem make sure the first place you look is /var/log/mail.err.

Final thoughts

At this point you should have a basic, working mail server. Postfix does make this task much more simple than did Sendmail. In my next article I will cover adding Spamassassin to your Postfix mail server to keep SPAM from getting in.

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• Open the Microsoft Outlook temp folder
• Display the size of the folder
• Delete all files in the folder

All of these actions can be initiated after installation of the application on supported Windows operating systems (which are Windows 2000, Windows XP, Windows Vista, Windows 7 as well as Windows Server 2003, 2008 and 2008 R2).

The program supports several command line parameters as well which can be used to initiate actions directly. Supported are:

• -clearfolder to delete all files located in the temp folder
• -openfolder to open the folder
• -foldersize to display the size of the Outlook temp folder

These can be used either with a startup shortcut or the Windows Task Scheduler to clean the Microsoft Outlook temp folder regularly without further user interaction.

Outlook Temp Cleaner is compatible with Microsoft Outlook 2010, Outlook 2000, Outlook 2002/XP, Outlook 2003 and Outlook 2007. It requires the Microsoft .net Framework 2.0 to be installed on the computer system. The program can be downloaded from the developer’s website.

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The string sorting option can be very interesting for users of webmail accounts that support Unicode characters like Gmail. The default sorting order in Thunderbird would change the sort order of the Gmail folder as Thunderbird does not use these characters in the sorting process.

The manual folder sorting on the other hand gives the user the versatile option to sort the folders exactly how they should look like without having to care about a specific sort order. It could take longer to sort but in the end it should be the most comfortable for the user.

Manually Sort Folders is available for Thunderbird 3 only. It can be downloaded at the Mozilla Thunderbird website.

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The only available option to customize the archive is the advanced config editor which makes it possible to change the archiving granularity, names and other settings. The Thunderbird 3 add-on Message Archive Options is basically a frontend for the advanced config options.

There are two options that the add-on offers. The first allows the Thunderbird user to customize the granularity of the archiving function in Thunderbird. It is first and foremost possible to switch from the one folder per year structure to either to a single folder structure or one with months as the additional levels. The date format for the year and year – month structure can be altered as well.

The second option is to add a key modifier to the archiving shortcut. It is possible to add Alt, Shift or Control to [a] to archive the selected email messages.

Message Archive Options does not invent the wheel anew but it offers easier access to customizing the email archive in Thunderbird 3. The add-on is only compatible with Thunderbird 3 and available at the Mozilla website.

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The first release candidate of Seamonkey 2.0 has been published on the Mozilla Seamonkey project page. Interested users can download the Internet suite for all supported operating systems (Windows, OSX and Linux) and languages. A page full of changes relative to the latest Seamonkey 1.0 stable release has been posted by the developers. The list is huge. Some of the noteworthy additions include session restore, tabbed mail, switch to the Toolkit backend used by Firefox, improved password manager and download manager, update of the Gecko rendering engine and dropped support for Windows NT 4, Windows 9x, Windows ME and Mac OSX 10.3.

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The installation is slightly more complicated than the usual add-on installation. The reason for this is Language Tool needs to run as a local server. There is an option to use a remote server but this would mean that the email contents would be transferred back and forth to that server which obviously raises privacy concerns.

The developer of the grammar checking add-on for Thunderbird has published explanations on how to setup the local server and configure the add-on in Thunderbird to use that server. In short: All it takes is to run the server from the web start option provided at the Language Tool website. This will download the files to the local computer system and provide an option to start the tool as a server (File->Option and select “Run as server”:) The server settings need to be changed in the extension’s preferences.

Grammar Checker is an experimental add-on that can be downloaded from the Mozilla website.

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Security analyst Bogdan Calin from Acunetix performed a similar analysis on the leaked Hotmail data. He performed an initial analysis and clean up of the data which consisted of 10,028 entries and started a detailed analysis of the remaining 9843 passwords of which 90% were unique.

• 3,713 = 42 %; lower alpha passwords : passwords containing only characters from ‘a’ to ‘z’. Example : iloveyou
• 291 = 3 %; mixed case alpha passwords : passwords containing characters from ‘a’ to ‘z’ and from ‘A’ to ‘Z’. Example: ILoveYou
• 1707 = 19 %; numeric passwords: passwords containing only numbers (’0′ to ‘9′). Example: 123456
• 2655 = 30 %; mixed alpha and numeric passwords: passwords containing characters from ‘a’-’z’, ‘A’-’Z’ and ‘0′-’9′. Example: Iloveyou12
• 565 = 6 %; mixed alpha + numeric + other characters. Example: 1Love You$%@

The shortest password in the list was made up of one character while the longest used 30 of them. The average length was eight characters with 42% of all users using a password that only consisted of lower case characters from a to z and an additional 19% of all users using a password with numeric values only.The most common used password was 123456 followed by 123456789.

Calin thinks that the passwords have been gathered using various phishing kits. It is also likely that the attack was aimed at the “latino” community which he concluded from the passwords entered by the users. You can find the full report at the Acunetix website.

Verdict: It is interesting that that many users are still using weak passwords for important accounts like web email accounts. But then again, a good password does not help at all if the user enters it in the wrong place for attackers to see.

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The situation will likely change with the final release of the email client. It is on the other hand likely that most Thunderbird add-ons will function correctly if their compatibility is edited manually or by using an add-on like the Nightly Tester Tools.

Buttons [link]

The Buttons add-on adds several new buttons to Thunderbird 3 including buttons to display the next or previous email (as opposed to displaying the next or previous unread email which is the default option in Thunderbird), SMTP server selection, delete junk button that marks the message as junk and deletes it afterwards, HTML and Image on and off buttons or a delete thread button that deletes the entire thread of messages.

Hide Menubar [link]

The Thunderbird 3 menu does not usually need to be displayed all of the time. Especially users with lower screen resolutions might be interested to save screen estate to work more comfortable in the email client. Hide Menubar is a straightforward Thunderbird 3 add-on that hides the Thunderbird 3 menubar automatically. The alt key can be used to switch between hiding and displaying the menubar.

gContactSync [link]

This add-on makes it possible to synchronize contacts between the Thunderbird email client and one or multiple Gmail and Google accounts.

Smooth Wheel [link]

Smooth Wheel offers the ability to fine tune the mouse scrolling smoothness in Thunderbird. The default smoothness does not satisfy many Thunderbird users (and actually Firefox users as well) and this is the add-on to customize the smoothness for a better experience.

Remove Duplicate Messages [link]

Duplicate emails are usually experienced during connection errors or if the mail program or mailboxes got damaged. This add-on cleans duplicate emails easily offering to move or delete them in the email program.

FiltaQuilla [link]

FiltaQuilla adds new filters to Thunderbird extending the automatic email processing options in the email client. It is for example possible to launch or run a file, append to subject, train the email program as good or junk and mark the email as unread or replied.

Foxclocks [link]

Can display multiple clocks in the Thunderbird interface.

Know of any other Thunderbird 3 add-ons that should be in this list? Let us know in the comments.

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Most Thunderbird users probably do not need some of the information and options provided by default. This includes for example the information to whom the email was send or the action buttons like deleting emails which are also available on a right-click in the email itself.

That’s where the experimental add-on Compact Headers comes into play. The add-on is compatible with Thunderbird 3 only and can reduce the size of the email header to one row.

Thunderbird 3 Default Email Header:

Thunderbird 3 Compact Email Header:

The way the email header is displayed in compact form can be altered in the add-on’s options. It is possible to increase the size to two rows which can also hold some of the buttons that are provided in the standard Thunderbird header. Buttons can be individually selected in the options.

Compact Header for Mozilla Thunderbird 3 is an experimental add-on that is not automatically updating itself. The add-on comes with a “check for updates” button in the options. It is available at the Mozilla Thunderbird add-on repository at Mozilla.org.

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The release notes contain a huge list of new features and improvements including a new email search with advanced filtering options, global search with autocomplete, smart folders, tabbed email messages, new add-ons manager, improved address book, better Gmail integration and integration into Windows Vista’s search results.

Improvements have been made to overall performance and stability as well as web compatibility and sustainability. The way IMAP connections are handled has been improved in this version of Thunderbird as well. Thunderbird can now download IMAP messages by default in the background “to allow for faster message loading and better offline operation”.

Users who are interested in the new version can download it from the Mozilla Thunderbird website. The usual precautions should be taken considering that this version is still a beta version that should not be used in a production environment. The full release notes can be accessed at this link.

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Fox Clock will add clocks to the Thunderbird status bar. Those clocks – unlike in Firefox – will be displayed next to each other in the desktop email program. This is more comfortable as all clocks are visible all the time opposed to the one clock that is visible in Firefox.

The add-on comes with additional options to configure the time format, position and style, time zone data and more. That’s another positive aspect of the add-on when compared to its Firefox counterpart. The clocks can be displayed on the left or right side of the Thunderbird status bar. An alternative is the option to display them as a toolbar instead which could then be placed in the Thunderbird header area.

Fox Clocks in an helpful add-on for email users who regularly correspond with email users from other places in the world. The Thunderbird add-on is compatible with all versions of Thunderbird. It can be downloaded from the official Mozilla Thunderbird website.

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Yahoo Mail today announced the integration of the Drop.io service as an application into Yahoo Mail. Drop.io is a file hosting service on the Internet that can be used to upload and share files on the Internet.

The Yahoo Mail solution adds a one-click solution to upload attachments with a size of up to 100 Megabytes. Users who receive emails with attachments that have been uploaded this way will see a link that is pointing to the uploaded files. Recipients have then options to view online or download the attachments to their computer system.

Yahoo Mail users who do not see Applications in the left sidebar need to visit the Yahoo Mail Applications page to enable them. The Attach Large Files is then available from the applications menu. The feature makes it a bit easier and more comfortable for users to share larger files although this method can be easily replicated manually by users who use different online email services like Gmail.

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