An issue with load-balancing software caused messages to pile up, with some still undelivered on Tuesday morning
It's Microsoft's turn as yet another cloud outage spreads across the UK and US
Microsoft tests monthly free for Outlook.com premium, which will offer personalised email, better calendar sharing and remove adverts
Microsoft makes it easier for Gmail users to ditch Google with a new Outlook.com email import tool
Microsoft rolls out Skype integration to users in six countries
Google has updated Gmail's user interface to allow email to be sorted into separate tabs for better organisation
Microsoft has moved millions of Hotmail users to Outlook.com, shifting 150 petabytes of emails over six weeks
Microsoft starts rolling out Skype plug-in to UK Outlook users