If you have a btinternet email address, and you have been accessing your emails on the internet (so not using a mail client like Outlook), and you decide to switch your ISP, you are in danger of losing all your historic emails.
This is the only way I have found to keep all your historic emails: first you need to get the emails into Outlook, and once you have done that, you can save them all in a .pst file on your PC. Then you can keep them for as long as you want.
To set up Outlook to pick up your emails:
Click on the File tab then click on Add Account.
Fill in your details on the page, and then tick the box marked Manually configure server settings or additional server types.
Choose Internet E-mail – This will bring you to the screen below. Fill in the details using your name, and your bt account and password.
Now click on More Settings…. and you get the pages below.
Check your setting look like the ones in the pictures.
Also, you must choose the folder for sent mail.
So, once you have done that, and clicked Finish, you should find that all your emails are copied across into Outlook, in the same folders that you had set up on bt. It may take a while.
Although all the emails have now (hopefully) been copied into Outlook, they will still all disappear when BT deletes your account, so now you need to save them to a pst file.
In Outlook, click on the Home tab. Just below the tabs, click on the New Items icon. Choose More Items, then choose Outlook Data File. A new window opens, make sure Outlook Data File (.pst) is selected. Click ok. A new window opens, with the save location for the .pst file. You can change this location if you want to. Click ok. My Outlook Data File will appear in the list of Mail folders. Drag the folders containing the BT emails onto My Outlook Data File. This may take a while! All the emails will be copied, and once it’s done, they are saved on your PC and you can look at them any time using Outlook.