Install TbSync and Provider for Exchange ActiveSync and add the MSN account in TbSync settings. It should sync both calendars and contacts. https://addons.thunderbird.net/en-us/thunderbird/addon/tbsync/ https://addons.thunderbird.net/en-us/thunderbird/addon/eas-4-tbsync/ https://support.mozilla.org/en-US/kb/installing-addon-thunderbird It work with my Hotmail account, so it should also work with msn/outlook.com accounts.

For MSN email – myname@msn.com I was able to use TBSYNCH and Provider for Exchange Active Synch to synch my calendar with full read and edit as follows: Download and activate the TBSYNCH and Provider for Exchange Active Synch as in other responses see links below. Follow the [[how-to-get-started guide|https://github.com/jobisoft/TbSync/wiki/How-to-get-started]] instructions in TBsynch to add account DIFFERENCE : Select Exchange Active Synch and use custom configuration For MSN accounts use the server address imap-mail.outlook.com Set the periodic synchronization time to 1 minute for best results or acceptable time otherwise it will not refresh. [[https://addons.thunderbird.net/en-us/thunderbird/addon/tbsync/ ]] [[https://addons.thunderbird.net/en-us/thunderbird/addon/eas-4-tbsync/ ]] [[https://support.mozilla.org/en-US/kb/installing-addon-thunderbird]]