1. Email – Protocols 21 Email – Protocols 21

2. Email – Protocols 21 Now we’ll move on to more technical aspects of email This means email protocols Remember that a ‘protocol’ is a set of means rules that say how communication data is handled You need to know about 3 protocols But first, a quick reminder how email actually works…

3. Email – Protocols 21 Email Server Store & Forward Messages are stored on the email server & then ‘forwarded’ when the receiver clicks to download Email Server

4. Email – Protocols 21 Email Server Sending SMTP Simple Mail Transfer Protocol Pushes outgoing email to a server If ever a problem sending, then SMTP will keep trying until it’s sent

5. Email – Protocols 21 Email Server Receiving POP3 Post Office Protocol v3 Dates back to start of email So it works in a basic way that now seems ‘old fashioned’ It downloads messages Emails then deleted on server

6. Email – Protocols 21 Email Server Receiving POP3 Post Office Protocol v3 Dates back to start of email So it works in a basic way that now seems ‘old fashioned’ It downloads messages Emails then deleted on server

7. Email – Protocols 21 Email Server Receiving IMAP Internet Mail Access Protocol Newer protocol for ‘webmail’ Lets you download emails But leaves them on server So you can then access your email on other devices

8. Email – Protocols 21 Email Server Receiving IMAP Internet Mail Access Protocol Newer protocol for ‘webmail’ Lets you download emails But leaves them on server So you can then access on other devices if connected

9. Email – Protocols 21 You’re expected to know these three protocols for email SMTP is for sending POP3 is for receiving ‘old school’ style, where emails deleted on server IMAP is for receiving ‘webmail’ style, where emails stay on the server so you can access them on many devices And finally…let’s be clear what we mean by webmail…

10. Email – Protocols 21 You may not know it, but people have a lot of choice for email software…

11. Email – Protocols 21 Email Client Software So people have these two basic options… Webmail Email Server

12. Email – Protocols 21 Email Client Software So why would people pick these options… Webmail Email ‘clients’ have more features & tools So software is more powerful, such as better ways to organise emails Good for business users But better suited to people who sit at a desk Disadvantage is you have to install the application

13. Email – Protocols 21 Email Client Software

14. Email – Protocols 21 Email Client Software So why would people pick these options… Webmail No special software since it runs in your browser Can access anywhere – as long as you’re online! Disadvantages include ads, spam and generic email addresses eg fred676@gmail.com fred676@gmail.com Lacks powerful features Email ‘clients’ have more features & tools So software is more powerful, such as better ways to organise emails Good for business users But better suited to people who sit at a desk Disadvantage is you have to install the application

15. Email – Protocols 21 Webmail

16. Email – Protocols 21 So the exam board expects you to know the basic difference between email clients and webmail Clients suit people at a single desktop Webmail suit people on the move In reality, of course, today’s email services often support both ways of working School is a good example…

17. Email – Protocols 21 Email Client Webmail On desktop PCs in school, staff go to All Programs and use an email client – Outlook 2013 But staff can also click the link on the school site and use webmail – just like you do!

18. Email – Protocols 21 Email – Protocols 21

19. Email – Protocols 21 Email – Protocols 21