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NAZ1000Flag for United Kingdom of Great Britain and Northern Ireland asked on

Freeing up mailbox data after archiving

Users are reaching their Exchange 2010 mailbox quota and archiving. However outlook still reports them as using the same mailbox size .

Read an article that need to do an offline defrag (which I wish to avoid) - or moving mailbox to another database can cause defrag to happen. Have tried this and still no change
reported in outlook - Have tried switching from cached to non-cached mode - still no change.

Thank you.

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8/22/2022 - Mon

You could compact the local file too, that may help.

Are you talking about mailbox sizes or database sizes? you sound like your mixing the 2. which are you referring to?

You could take a look at


Check the white-space and go from there, also if they are archiving mail, it may take time for it to stub the email.
Your help has saved me hundreds of hours of internet surfing.

Mailbox size - it says you have reached quota - so users are archiving - but mailbox size is not going down . I read somewhere that moving the mailbox from one database to another causes exchange to report the correct size - but didnt work for me.

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Thank you - running that cmdlet shows exchange still has their mailboxes as the same size as outlook is reporting.