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We are running Exchange 2016 on premise and the upper management wants to set an age limit for public folders. We have a lot of public folders with tasks, contacts and calendar items. How is the age limit (retention age) determined for these types of public folder items? There is a lot of information on how retention age is calculated for mailboxes but not for public folders.

Prajna Rai T
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Greg Brennfleck
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    Hi, any update? Please check if the answer below is helpful to you. If you problem has been fixed, you could mark the best answer or share your solutions. – Ivan_Wang Jun 24 '21 at 01:14

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There are two levels of age limits for public folder(Limits for public folders):

1 Organizational level: Use the DefaultPublicFolderAgeLimit parameter on the Set-OrganizationConfig cmdlet.

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And you could run the following command to view this setting:

Get-OrganizationConfig | fl DefaultPublicFolderAgeLimit

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2 Folder level: Use the AgeLimit parameter on the Set-PublicFolder cmdlet.

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Run the following command to view the age limit for single public folder:

Get-PublicFolder -GetChildren | Select Name, AgeLimit

There is another age limt for deleted items in public folder too:

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Besides, you could also view the age limits of a public folder in EAC:

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Ivan_Wang
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  • The above answer only covers how to set age limits on public folders. What I wanted to know is if/when will contacts, reoccurring calendar items and tasks be deleted? Is it based on the date created or the age after a calendar item and task is expired? Will age limits delete contacts in public folders? – Greg Brennfleck Jun 28 '21 at 17:00