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CHAPTER 14 COMMUNICATING WITH OTHERS Figure 14-1. You can switch between Evolution’s modes by clicking the buttons at the bottom left of the program window. Mail Contacts CHAPTER 14 COMMUNICATING WITH OTHERS Calendars Memos Tasks Basic E-Mail Tasks SMTP 1. CHAPTER 14 COMMUNICATING WITH OTHERS 2. 3. 4. Figure 14-2. Evolution can work with a variety of mail servers, including POP3, Microsoft Exchange, and IMAP. CHAPTER 14 COMMUNICATING WITH OTHERS 5. 6. 7. 8. 9. Note Although e-mail is normally sent as soon as you click the Send button after composing it, if the sending has been delayed for any reason (such as being offline at the time), it will take place as soon as you click the Send/Receive button. Until that point, it will be held in the Outbox folder on the left side of the program window. You may need to choose File Work Online if you’ve been composing e-mail in offline mode. CHAPTER 14 COMMUNICATING WITH OTHERS Figure 14-3. You’ll see a progress bar display whenever you click the Send/Receive button. E-MAIL SIGNING AND ENCRYPTION In Chapter 8, you learned how to use the Seahorse application to set up a public key pair. This allows you to encrypt e-mail messages destined for other people, so that only they can read the messages (provided you have their public key). The application also enables you to digitally sign your own e-mail, so recipients can be sure messages came from you (provided they have your public key). If you’ve followed the instructions to set up the key pair, and uploaded it to a key server, you now need to configure Evolution to use it. After doing this, and when you send a new e-mail message, you can select whether you wish to encrypt the e-mail and/or digitally sign it. Remember that setting up encryption is not obligatory, and relatively few people in the wider world use e- mail encryption or signing. Assuming you’ve already set up an account within Evolution, here’s the procedure for configuring Evolution for encryption and digital signing: 1. Click Edit Preferences, ensure that the Mail Accounts icon is selected on the left side of the window, and select your mail account in the list on the right side of the window. Then click the Edit button. In the dialog box that appears, click the Security tab. 2. You now need to find your PGP key ID by using Seahorse. Click Applications Accessories Passwords and Encryption Keys. Locate your key in the list under the My Personal Keys tab, and look under the Key ID heading. You should see an eight-character hexadecimal number, like F0C1B52A. Write this down, remembering that any 0 you see is a zero, not the letter O. 3. Switch back to the Evolution dialog box and type the PGP key ID you found into the PGP/GPG Key ID box. If you want every e-mail message you send to be digitally signed automatically, which is a good idea (the message itself won’t be encrypted, so even if the recipients are not using encryption, they will still be able to read it), ensure there’s a check in the Always Sign Outgoing Messages When Using This Account box. Then click OK and close the parent Preferences dialog box. Download from Wow! eBook <www.wowebook.com> CHAPTER 14 COMMUNICATING WITH OTHERS Encrypting outgoing messages, or signing them if you haven’t selected to automatically do so, is easy. When composing a new message, click the Security menu entry and select either PGP Sign or PGP Encrypt (or both). Remember that you’ll need to have imported the recipient’s public key via Seahorse if you want to encrypt a message addressed to that person, or you’ll see an error. If you sign a message, upon sending it, you’ll be prompted to enter the PGP passphrase you entered when you created the key pair back in Chapter 8. If, upon sending an e-mail message, you see the error message “Failed to execute GPG: Broken pipe,” it’s likely you mistyped your key ID when you configured Evolution. Try again. If you receive a message that has been encrypted using your public key, Evolution will automatically prompt you to enter your PGP passphrase to decrypt it. This is the passphrase you entered when creating your key pair back in Chapter 8. When you receive a message from someone who uses digital signing, and you have that person’s public key, the message should contain a green bar along the bottom containing the words Valid signature. If you see words to the effect that the signature is invalid, or if the signature is missing, you should be suspicious and independently verify the authenticity of the e-mail message. CHAPTER 14 COMMUNICATING WITH OTHERS Figure 14-4. To permanently delete messages, right-click the Trash folder and select Empty Trash. CHAPTER 14 COMMUNICATING WITH OTHERS IMPORTING OUTLOOK E-MAIL VIA THUNDERBIRD Earlier in the book, we discussed a method of exporting e-mail from various Microsoft e-mail programs, which use proprietary formats, so that it can be imported under Ubuntu. To recap, you can install the Mozilla Thunderbird e-mail client under Windows, import your e-mail into it from Outlook or Outlook Express, and then export Thunderbird’s mailbox ( .mbox) files for importing within Evolution. If you followed these instructions and now have the .mbox files ready for use with Evolution, it’s easy to import them. Click File Import. In the Import dialog box, click the Forward button and then select Import a Single File. Click Forward again and click the Filename drop-down list. This will open a file-browsing dialog box, in which you can locate the .mbox file and click Open. If you have more than one .mbox file, you’ll need to import each one manually. The Automatic entry in the dialog box refers to the file type and will select the correct file type by file extension. [...]... characteristics that make it a good choice for Ubuntu users, namely its capacity for synchronizing notes and contacts between several computers (in addition to just storing files) Currently, only Ubuntu clients are supported Ubuntu One subscriptions come in two flavors A basic subscription is available for free, and it enables you to store up to 2GB of personal information on Ubuntu One servers If you need more... time of writing, the fee was $10 a month) In order to use Ubuntu One, you must first subscribe to the service and then configure your computers to connect and synchronize files, notes, and contacts Subscribing to Ubuntu One Follow these instructions to create your account and subscribe to the free Ubuntu One service 1 Access the site at http://one .ubuntu. com 2 Click “Sign in.” 3 You will need a Launchpad... and then click Agree & Subscribe ■ Caution Ubuntu One is a free service and as such is very useful But you should carefully read its Terms of Service and its Privacy Policy, available here: https://one .ubuntu. com/terms/ and here https://one .ubuntu. com/privacy/ and make sure they don’t affect the use you will give to the service Make sure you understand that Ubuntu One is not a replacement for regular... Tip Many people in the Linux community frown on HTML-formatted e-mail and prefer plain text messages CHAPTER 14 COMMUNICATING WITH OTHERS aspell-fr Note The aspell-fr package also includes the Swiss French variation of the language 1 2 3 Figure 14 -6 Creating an e-mail signature saves you from having to type your contact details each time CHAPTER 14 COMMUNICATING WITH OTHERS 4 5 6 7 Advanced E-Mail Tasks... functionality that allows you to have the best of both worlds, by making the most of your PC’s hardware resources, while being able to use cloud-based services transparently Storing Your Data Online with Ubuntu One Ubuntu One is an online storage and synchronization service operated by Canonical Ltd This means it provides you with space in the cloud and synchronizes its content with your computers 342 CHAPTER... Description I seek you COMMUNICATING WITH OTHERS CHAPTER 14 COMMUNICATING WITH OTHERS Installing Skype deb http://download.skype.com /linux/ repos/debian/ stable non-free stable stable non-free Download from Wow! eBook debian/ Figure 14-14 It’s easy to install Skype under Ubuntu, and it works almost exactly as it does under Windows or Macintosh CHAPTER 14 COMMUNICATING WITH OTHERS www.skype.com... have an online copy of your private data In this chapter, we talk about how Ubuntu can leverage those two trends and make our online life a lot easier and pleasant ■ Note One of the main applications you will be using with social networks and cloud-based services is your favorite web browser Most browsers that you can use with Ubuntu are very well suited for social networking In this chapter we talk... Microsoft offers hosted versions of some of its most popular server software, such as Exchange and SharePoint In a short time, the core processing unit won’t be the PC, but the whole of the Internet Ubuntu, or Linux for that matter, is not a cloud-centric operating system the way Google Chrome OS is It still relies on the local PC for most of its operations Nonetheless, Lucid Lynx comes equipped with some... other people’s threads Gwibber is installed by default and can be found at Applications Internet as Gwibber Social Client If for some reason you don’t have it, you can install it by going to Applications Ubuntu Software Center Click Get Free Software in the left pane and select the category Internet Browse the list of available applications and select Gwibber Click Install to begin installation (refer... the Microphone slider Ekiga Figure 14-15 Ekiga is an open source alternative to Skype CHAPTER 14 COMMUNICATING WITH OTHERS Summary C H A P T E R 15 ■■■ Social Networks and Cloud Computing From the very beginning, computer networks were about more than just connecting devices They were about connecting people The day two computers first got connected, a communication path between two human beings was . language. 1. 2. 3. Figure 14 -6. Creating an e-mail signature saves you from having to type your contact details each time. CHAPTER 14 COMMUNICATING WITH OTHERS 4. 5. 6. 7. Advanced E-Mail. various Microsoft e-mail programs, which use proprietary formats, so that it can be imported under Ubuntu. To recap, you can install the Mozilla Thunderbird e-mail client under Windows, import your. HTML, allowing you to format text and even add images to your messages. Tip Many people in the Linux community frown on HTML-formatted e-mail and prefer plain text messages. CHAPTER 14 COMMUNICATING