exporting from outlook express: PST or MAPI

I am moving from outlook express to outlook 2007 and I need to better understand the two different pathways offered by the Aid4Mail program. I plan on using it because I fear that just importing directly into Outlook 2007 will lose information, dates, even maybe folder structure.
I have a huge outlook express mail folder ( 5.6 GB) and I am worried about the individual file size limits for Outlook 2007 also.
and finally I plan on using a Zimbra, a competitor of MS Exchange, to automate a lot of tasks. will using PST once on old messages interfere with these abilities?
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Alan HardistyConnect With a Mentor Co-OwnerCommented:
Outlook 2007 will happily suck all the relevant information from Outlook Express correctly without the need for a 3rd party application.
None of the info will be removed from Outlook Express, so no matter what happens, if it goes wrong, you can re-run the import and try it again.
Outlook 2007 uses a different .PST file structure (UNICODE) that allows .PST files to grow to 20Gb, not 2Gb as previously was the case.
Alan HardistyCo-OwnerCommented:
Can't comment on Zimbra as I have no experience of it I'm afraid.
I would back up my Outlook Express profile before doing anything.  Follow this article:


As above, Outlook 2007 will import your OE items without issue or loss of data (backup first to be certain though).
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