That's a new one to me and disturbing.
Any chance that it didn't hit your address book, but instead used and old email you had sent which had multiple recipients?
What about opening your address book externally and having a look. It is the wab.exe file.
Alternatively, open wab.exe and export the contents to either a text file or a .csv file, (comma separated values), then open that file in Notepad?
Other than that, no idea.
Mark
I got hit last night and something sent out a SPAM email from my OE address book. I got four bounce-backs because of invalid email addresses. Addresses that had been deleted. Is there a hidden storage of old email addresses stored somewhere? Running XP Pro and OE6

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