NOTE: This Guide is for STAFF and PhD students, whose email is hosted on the Exchange system at Sussex. There is an alternative Guide for Undergraduates and Taught Postgraduates who are hosted on the Cyrus mail system.
Thunderbird is a product of the Mozilla organisation and is a stablemate of the popular Firefox web browser. It is popular as an email client, being powerful and easy to use.
This Guide applies to Thunderbird version 17.0 and above. Earlier versions may differ in the procedures described below.
Please note that although Thunderbird is not formally supported by ITS, the following information will help get you started. You can browse the Thunderbird Online Help pages from Thunderbird's Help menu.
Consider using Thunderbird Portable if you use email from different computers. Both versions are essentially the same, but see FAQ 1450 for more details about installing and using Thunderbird Portable.
Installation instructions for Thunderbird can be found on the Mozilla Thunderbird website.
If you have just installed Thunderbird for the first time on your computer, it should offer an account set-up dialogue immediately after starting. Set up an account with your Sussex settings by following the steps below. If you have already installed and used Thunderbird and want to set up a new account, see the section Installing extra Thunderbird accounts below.





To add another account, click on Thunderbird's Application menu button as shown below, then click Options... and then Account Settings...:
Then, click on the Account Actions button at bottom left, and click on Add Mail Account... as shown below:
Then simply follow steps 3 onwards in the section above to create another account.
As standard, when installed, Thunderbird will set itself as your default email client. That means that when you click on a weblink to email someone, Thunderbird will be used. If you prefer not to have Thunderbird as your default email client (for example, you might use it only to access certain email accounts and you might normally use Outlook for your work email), you can undo the setting like this:
As standard, Thunderbird will show only the folders you have subscribed, usually in another email application. It's usually more convenient to view all your folders, whether you have subscribed them or not. To view all folders, follow these steps:

We strongly recommend that you delete messages you no longer need. This will help you manage your mail more effectively and also helps to preserve storage space on the server. The following settings will make message removal a more automatic process.

To set up a signature to add to your outgoing emails, follow these steps:
Thunderbird can sometimes give problems opening attachments - it may report them as damaged or corrupt, even if they are known to be undamaged. This is usually caused by the server reporting the wrong size for the attachment.
There is a possible workaround for this problem: please follow the instructions in FAQ 2334.
To add the sussex domain to an address as you are typing, open the Tools menu, choose Options, then Advanced and then General and click on Config Editor. Then scroll down the long list to the line containing mail.identity.default.autocompleteToMyDomain
Double click on this line so that the value changes to TRUE, then close the editor window by clicking its X button. Then click OK.
To create a new folder, right-click on your account name in the column on the left, OR right-click on an existing folder if you want to create a sub-folder in the selected folder. Then choose New Folder or New Subfolder as appropriate from the drop-down menu, and enter the name of the new folder. Use only alpha-numeric characters (letters, numbers and hyphens) in the name.
To delete a mail folder, simply right-click on the folder name and choose Delete from the drop-down menu.
Local mail folders are, as the name implies, stored locally on your personal computer, not on the central server. Local mail folders are a convenient way of archiving email if you want to release space from your mailstore on the central server. However, please note that IT Services cannot accept responsibility for any email folders stored locally. You must ensure their safety and integrity by making regular backups of the folders.
Thunderbird has a built-in hierarchy labelled as Local Folders in your list of accounts and folders. The standard location for this is deep within the Documents and Settings folder on the C: drive, but you can change the location to something more conveniently accessible, like this:
You can create a new mail folder in the Local Folders hierarchy simply by RIGHT-clicking the Local Folders label and choosing New Folder... from the drop-down menu, and follow the simple dialogue.
Information on how to make use of local folders for making copies of your email can be found in FAQ 1455.
created on 2011-09-13 by Andy Clews
last updated on 2012-11-27 by Andy Clews