Updated: July 9, 2020 (May 7, 2012)

Important Dates for Outlook

As managing vice president, Rob Helm covers Microsoft collaboration and content management. His 25-plus years of experience analyzing Microsoft’s technology... more

Outlook 2003 installations should be targeted for migration. Shown here are important upcoming support dates for recent versions of Outlook.

Paid support will still be available for Outlook 2003 SP3 through Apr. 2014, and the version still works with the current Exchange Server 2010. However, it is not compatible with the Office 365 services (launched in June 2011), and it will probably not be compatible with future versions of server products. Consequently, organizations should already be planning its replacement.

The Mainstream support end date for Office 2007 (including Outlook 2007) was moved out six months from the original planned end date to Oct. 9, 2012.

Date	Version	Event
July 10, 2012	Outlook 2010	SP1 required for support after this date
Oct. 9, 2012	Outlook 2007	Mainstream support ends
Jan. 8, 2013	Outlook 2007	SP3 required for support after this date
Apr. 8, 2014	Outlook 2003	Extended support ends

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