These instructions are for Outlook Express. (They'll be fairly similar for Outlook):
Go to Tools > Accounts.
Click the 'Mail' tab.
Click on the name of your e-mail account to highlight it. (NB: If there's no account listed, jump to the the link below).
Click 'Properties'
With the 'General' tab selected, check that the relevant information (i.e. your name and e-mail address) is correctly completed.
With the 'Servers' tab selected, ensure that 'Incoming mail' shows 'pop.orangehome.co.uk. (I've highlighted that bit because that's what the error message is telling you is incorrect).
'Outgoing mail' should show 'smtp.orangehome.co.uk'
'Account name' should be in the form 'yourname.orangehome.co.uk' (i.e. it should show the part of your e-mail address
after the '@' sign).
'Password' should be set to your chosen password. (It will appear as asterisks).
There should be a tick alongside 'Remember password'.
The other tabs can be ignored.
Click 'Apply', then 'OK'.
If your account doesn't exist at all, set it up by following the instructions here:
http://help.orange.co.uk/resultDisplay.do?goto Link=161&docType=1006&contextId=819:161.205,20 9.258&docPropValue=kb79&clusterName=DefaultClu ster&contentId=b89faa50-49fc-4969-96a5-41fe2e1 5d5fd&responseId=8d2e8ca9895d3ec8:100ebec:1139 85124f3:-2bef&groupId=1&answerGroup=4&score=89 1&page=http://ESERVER_d5296e42-4fba-4431-992d- 0f00615005b5.xh