The new version of Outlook.com is called Outlook Mail, sometimes referred to as 'Outlook on the web'. This version is built on the Office 365 platform, which should bring some performance improvements, and there are several interface enhancements. Some details of the preview version have been given in this blog post: New ways to get more done in Outlook.com.

However, the new version no longer supports the DeltaSync protocol which is the default configuration for Microsoft email accounts in Windows Live Mail. Unless and until an update is released for Windows Live Mail to enable support for Exchange ActiveSync that grants synchronizing access to Microsoft email accounts (those @outlook, @hotmail, @live, @msn, @windowslive and any other free account with a mailbox at mail.live.com), other methods will be needed. This article explains how to work around part of the problem by using IMAP instead.

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Many Outlook.com accounts have already been upgraded to the new version. The indications of this for the user are:

A new layout on the web. The banner at the top of the page seems to vary, probably from market to market; this is the one I see:

In Windows Live Mail, an error message when synchronizing:

Deactivate the old account

This account will no longer work, new messages will not be downloaded and there will be no synchronization of other folders. For the time being, then, right-click on the account name in the folder pane and select Properties. On the General tab, deselect Include this account when receiving mail or synchronizing, then click Apply and OK. This will ensure that the account folders will remain intact with their contents during the transition.

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This article goes on to give all the necessary instructions and worked a treat - I now can use my Hotmail accounts again on WLM! Brilliant!

One question: now the 'old account' has been deactivated (see paragraph just above my italics text) can that be deleted in it's entirety from WLM without compromising the new accounts and the content that is still there?

Thanks for any help.

John