Error: Message store has reached its maximum size
Outlook "0x8004060C" occurs when the Outlook PST data file ("Message store", e.g. the "outlook.pst" file) exceeds the default maximum size limit.
To resolve the 0x8004060C maximum limit error you have have the following two options:
1. The first option is to permanently delete (SHIFT + DEL) some email messages that you don't want any more
2. Specify a new larger maximum size limit for the Outlook message store.
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