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Email. WeeSan Lee weesan@cs.ucr.edu. Roadmap. History Email Account Email Clients Access Emails Email Basics Advance Features Emoticon & Acronyms Netiquette Conclusion & References. History. In 1971, Ray Tomlinson of BBN invented email program
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Email WeeSan Lee weesan@cs.ucr.edu
Roadmap • History • Email Account • Email Clients • Access Emails • Email Basics • Advance Features • Emoticon & Acronyms • Netiquette • Conclusion & References
History • In 1971, Ray Tomlinson of BBN invented email program • In 1972, @ was used to separate username and hostname
Email Account • username@host.domain • Eg. weesan@cs.ucr.edu • Get an account from • ISP, eg. weesan@pacbell.net • University, eg. weesan.lee@email.ucr.edu • Department, eg. weesan@cs.ucr.edu • Google, eg. weesan@gmail.com • …
Username & Password • Username or userid? • Choose a good username* • A good choice is first initial and last name • Eg. wlee • A bad username might cause you your job! • Choose a good password • At least 8 characters long • Mix UPPER & lower case, numbers and symbols • Eg. ^Bambo0!
Email Clients • A program to read emails • GUI-based (Graphic User Interface) • Thunderbird • Eudora • Outlook Express • Outlook • Text-based • Pine • Web-based • Gmail • Hotmail
Email Clients - Examples http://arstechnica.com/images/thunderbird/thunderbird-ss1-sm.gif
Access Emails • POP • Post Office Protocol • Version 3, ie. POP3 • Require an email client • IMAP • Internet Message Access Protocol • May or may not require an email client • Web-based • Require a web browser
POP • A way to retrieve/download emails locally • Connect, download, disconnect • Ideal for offline mail usage • Require an username & password • Incoming Mail Server • A server for downloading emails • Eg. pop.cs.ucr.edu • Options for: • How often to download emails • Leave emails on the server
POP (cont) • Outgoing Mail Server • A server for sending emails • Eg. smtp.cs.ucr.edu • Use SMTP (Simple Mail Tranfer Protocol) • Incoming and outgoing mail server could be the same
IMAP • A way to access emails directly on the server • Usually stay connected, also provide offline mode • No local burden • Require an username & password • IMAP server • A server where emails are stored • Outgoing mail server and IMAP server could be the same
Webmail - Web-based email • Use a browser to access emails anywhere • Usually a front-end to an IMAP server • Signup is easy • Username of your choice* • Complete a few forms • Eg. • http://webmail.ucr.edu/ • http://webmail.cs.ucr.edu/ • Google mail or Gmail • Hotmail • Yahoo mail
Webmail (cont) • Messages and address book are stored on the server • Backup important messages and email addresses • Security issues • Messages and addresses are stored remotely • Be sure to logout after use • Drawback for public webmail • A few advertising lines on each outgoing message • Popup ads or on the side
Email Basics (Gmail) • Read Email • Write/Compose an Email • Reply • Reply All • Forward
Reply Send email back to the sender Reply All Send email back to all original recipients Forward Send email (including original message) on to someone else Email Basics
Email Headers (cont) • To • To someone for direct information or action • Comma separated for multiple recipients • Eg. weesan@cs.ucr.edu, santa@northpole.org • Cc • Carbon copy or computer copy • To someone for their information • Bcc • Blind carbon copy or blind computer copy • The recipients in To and Cc can’t see recipients in this field
Email Headers (cont) • Return-Path: <list2-return-251-weesan=cs.ucr.edu@phdcomics.com> • Received: from esmtp.cs.ucr.edu (esmtp.cs.ucr.edu [138.23.169.83]) • by iliad.cs.ucr.edu (Postfix) with ESMTP id 6D5F42CA4019 • for <weesan@iliad.cs.ucr.edu>; Tue, 16 Oct 2007 02:08:55 -0700 (PDT) • Received: by esmtp.cs.ucr.edu (Postfix, from userid 202) • id 13B802632CF; Tue, 16 Oct 2007 02:08:52 -0700 (PDT) • X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on esmtp.cs.ucr.edu • X-Spam-Level: * • X-Spam-Status: No, score=1.8 required=5.0 tests=AWL,BAYES_50, • MSGID_FROM_MTA_ID autolearn=no version=3.1.3 • Received: from mail3.sea5.speakeasy.net (mail3.sea5.speakeasy.net [69.17.117.5]) • by esmtp.cs.ucr.edu (Postfix) with ESMTP id DA9E2262DF7 • for <weesan@cs.ucr.edu>; Tue, 16 Oct 2007 02:07:34 -0700 (PDT) • From: "PhD Comics" <new_comic@phdcomics.com> • To: <mailinglist2@phdcomics.com> • Date: Tue, 16 Oct 2007 00:13:39 -0700
Email Headers (cont) • Correction from the book, pg. 117 • Routers and servers add these when the message is passwd along the line. • SMTP servers add these when the …
Plain Text vs. HTML Email • Don’t send HTML Email • Not all are using a GUI or web-based email client • Don’t send both plain text and HTML email • Bloated
Advanced Features • File Attachment • Address Book • Filters • Vacation Message • Signature • Sorting & Search • Email Management • Encryption
Advanced Feature - File Attachment • Email was designed to send plain text • Binary files need to be encoded before “attaching” in an email • Eg. Word document, image files, audio/video files • Usually Base64 encoding is used • A-Z, a-z, 0-9, +, - • So, attachment is usually 1/3 bigger than original
Advanced Feature - Address Book • Allows the use of names instead of email addresses in To, Cc and Bcc fields • Avoid emails from people in the address book being flagged as SPAM • AKA Contacts
Advanced Feature - Vacation Message • Automatically reply a short message back to the sender • Click Settings/General
Advanced Feature - Signature • Automatically include your contact information in each email you send • Click Settings/General
Advanced Feature - Sorting & Search • Emails can be sorted based on arrival time, subject, To, From, size, etc • Emails are searchable
Advanced Feature - Email Management • Traditional email clients use folders • Save related messages to the same folder • Eg. All emails from friends are saved to friends folder • Problem • EmailA: An email from a colleague who is also a friend • EmailB: An email from a friend talking about food • Gmail uses labels • Label EmailA both as “colleague” and “friend” • Label EmailB both as “friend” and “food”
Advanced Feature - Encryption • PGP (Pretty Good Privacy) • Public and private keys • For example, Alice wants to send Bob an encrypting email • Emailencrypted = Aliceprivate{Bobpublic{Email}} • Alice sends Emailencrypted to Bob as an attachment • Bob gets the original email back by reversing the process • Email = Bobprivate{Alicepublic{Emailencrypted}} • Correction from the book, pg. 132
Emoticons • :-) smile • :) smile - no nose • 8-) smile with glasses • :-/ hmmm • :-( sad face • :( sad face - no nose
Acronyms • BTW By the way • IMO In my opinion • IMHO In my humble opinion • LOL Laugh out loud • BBL Be back later • TTFN Ta-ta for now • RTFM Read the f**king manual
Netiquette • Proper Internet social behavior • Network etiquette • RFC1855 - Netiquette Guidelines • Never send chain letters via electronic mail • Do not send heated messages • Heated messages are called “flames” • “Be conservative in what you send and liberal in what you receive” • Use a signature • < 4 lines
Netiquette (cont) • DON’T SHOUT • Use symbols for emphasis • Eg. This *is* what I meant • Use underscores for underlining • Eg. _War and Peace_ is my favorite book. • Wait overnight to send emotional responses to messages • Be concise & keep the message short • Don’t send emails over 100K • Send URL instead
Netiquette (cont) • Use a meaningful subject line • Be careful what you say • Make yourself look good online • Use spelling and grammar checker
Conclusion • Presented basic and advanced email usage • Described emoticons, acronyms and netiquette
References • Internet Effectively • Ch 4
