Event ID - 4164

Event Id4164
Descriptionthe file file_name in the pickup directory could not be parsed to get the originator and recipients due to the error 0x80004005.
Event InformationAs per Microsoft :
This issue can occur if the file does not have a size associated with it when it is first copied to the folder. The Internet Mail Service picks the file up, but the Internet Mail Service cannot process a file that has no size. Even though the file grows to its correct size on disk, the Internet Mail Service does not know that the file contains content.
To resolve this problem, obtain and install the latest service pack for Exchange Server 5.5.
To work around this issue, recopy the files from the Archive folder back to the Pickup folder.
However, you must be sure that these files are formatted correctly.
Reference LinksInternet Mail Service Moves Good Messages to the Archive Folder from the Pickup Folder

How to Obtain the Latest Exchange Server 5.5 Service Pack

Messages in the Internet Mail Service Pickup folder may be moved to the Bad Mail folder

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