Outlook Web Access time-out settings in Exchange server

Article translations Article translations
Article ID: 2573296 - View products that this article applies to.

This article discusses authentication time-out values for Microsoft Outlook Web Access (OWA).
Time-out values for an OWA session
Users are automatically logged off OWA after a period of inactivity. The time-out period of an OWA session depends on whether a user selects the This is a public or shared computer option or the This is a private computer option when the user logs on to OWA.

By default, the time-out values are set in Microsoft Exchange as follows:

Collapse this tableExpand this table
OptionTime-out value
This is a public or shared computer The OWA session ends, and the user is automatically logged off after 15 minutes of inactivity.
This is a private computerThe OWA session ends, and the user is automatically logged off after 8 hours of inactivity.
However, be aware that there are circumstances that override these default values. If a company uses two-factor authentication, an authentication server is located in front of the OWA server. Although a user's session may time out against a particular authentication server, the user's session in OWA remains active until the time-out setting for the logon option that the user selected is reached.
Expand all | Collapse all


Article ID: 2573296 - Last Review: October 3, 2011 - Revision: 4.0
  • Microsoft Business Productivity Online Dedicated
  • Microsoft Business Productivity Online Suite Federal
vkbportal226 KB2573296

Give Feedback


Contact us for more help

Contact us for more help
Connect with Answer Desk for expert help.
Get more support from smallbusiness.support.microsoft.com