Yesterday, I talked about file hashing in Visual Basic. There was a reason, and that was that I updated my Lotus Notes Mail Exporter program with some limited duplicate attachment checking.
Limited because it’s simple. Simple as in:
- check to see if a file attachment with the same name already exists.
- if it doesn’t, save it to disk.
- if it does, check to see if it is a duplicate. If it is, don’t save the “new” attachment.
Can you see the flaw in my thinking?
No???
Well the BIG FLAW is that if the file attachment we’re trying to save has a unique name, we don’t check it to see if there any duplicates of it already.
The next version of LNME will fix that by using a list table (see yesterday’s post – it’s the second detection method).
The other change in LNME is that the saved message file will have it’s message creation/modified/last access date set to the actual email send date.
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