What device you have (an iPhone 6 or a Samsung 7 for example).To set up your email on your computer, laptop or mobile device, you’ll need to know: If you don't set up SMTP authentication, you'll get an error 530 failure message when trying to send email messages. It's easy - you usually switch it on by ticking a box called 'My server requires authentication' in your email program's settings. SMTP is the technology that enables you to send email, so whether you're using IMAP or POP3, you'll need to enable SMTP. We recommend you use IMAP with SSL enabled as this will ensure copies of your messages are kept on the email server. IMAP and POP3 are the protocols or technologies that enable you to download your email messages to your computer or device. This means you can still read them even if your computer is not connected to the internet. This is an email program or application on your computer or device, like Apple Mail, Outlook or Windows Mail.Įmail client applications store your downloaded emails locally on your device. You can also set up your email to be used with an email client. To do this, just go to Using an email client Webmail or Web-based email means that you look at your email on a website from any computer or device connected to the internet. You can also access it through an email program or via a smartphone or tablet. You can access your BT email online from anywhere at any time.