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Outlook data file corruption causes improper Outlook functioning and several kinds of error messages to be prompted to user while dealing with the OST/PST file data.
Whenever these files get corrupt or become inaccessible due to some reasons, obviously it makes the Outlook user pierce his hairs off.
"Task 'Microsoft Exchange Server - Sending' reported error (0x8004060C): 'The message store has reached its maximum size.
If you are using the operating system older then Windows XP SP1 then Outlook doesn’t even display any error message but stops accepting email messages.
You need to obtain the latest service pack of Microsoft Office XP to resolve this problem.
Initially, the increasing PST file size lower down the speed of the Outlook considerably and hampers MS Outlook Email operations (sending or receiving emails), copying data from one folder to another etc.
Later on, the oversized PST file may get severely corrupt and can becomes inaccessible.
Severe OST/PST file corruption beyond repair may also cause you to loose your valuable Outlook data.