Log onto your BT email account and click on "contacts" in the menu bar. Once there click on "more" then "Export Contacts" and follow the prompts.
To import the contacts into Outlook will depend on which Microsoft Outlook you mean. Is it the webmail version known as Outlook.com or the email client Outlook?
Hi, Thanks for responding, however, it isn't the contacts I'm looking to import, it's my existing eMails that are stored on the BT server.
Do you mean MSOutlook the mail client or Outlook the mail service previously known as Hotmail?
If the former, you just need to configure your account as IMAP in Outlook and the mails will synchronise with the server.
If the latter, it is a bit more complicated. Configure both your BT email account and Outlook account as IMAP accounts in a mail client such as Thunderbird. Once the mails have downloaded from your BT email account you can just drag and drop them into your Outlook account.
Once done, you can choose to either continue using Thunderbird or revert to Outlook webmail.