Convert Microsoft .PST files to an RFC5322 compliant format

Greetings,

A client has approached us on a conversion job.  The source files are Microsoft .PST files (generated from an Exmerge job).  The two main requirements are to preserve all the header information, and the output must be RFC5322 compliant.  I'm not privy to the reasons why.

I have tools that can open PST files and export the contents to various formats - .MSG, .EML, etc.  The only format that even lists an RFC is .EML, but they all specify it as RFC822 compliant.  I've tried contacting the creator of the tool but have yet to receive an answer.


I suppose the first question really is what message 'format' is RFC5322 compliant?  
What professional tools exist for such a purpose?  
Would the header/metadata include the SMTP headers or just fields like to, from, date, etc. ?
Thank you.
dclabAsked:
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dclabConnect With a Mentor Author Commented:
Clarification on the previous response.  None of the responses provided a solution, as importing into another application (Gmail/Thunderbird, etc) could ensure that the metadata and headers would not be modified in any way.  

End result we could not find a direct way to accomplish this and instead our in house developers are writing their own code to accomplish this goal.
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Kent DyerIT Security Analyst SeniorCommented:
As a silly idea,,  Could you take the e-mail pst and export/import into say GMail?

Might be worth a shot.
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dclabAuthor Commented:
Hi, thanks for responding.  
The messages themselves won't actually be used in another email program.  The extraction is for some huge analysis project.  So they just need the raw data and headers, but it has to conform to a standard.
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gheistCommented:
Thunderbird can import from outlook and it saves as mbox files (5322 specifies message format not mbox file)
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dclabAuthor Commented:
I've requested that this question be deleted for the following reason:

answered
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gheistCommented:
By whom answered or post your answer.
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