Managing autocomplete when you change jobs - a thorough examination

Question

Hi, I am writing a guide to help people manage their autocomplete when they change employers. I am examining how to avoid emailing the infrequent use administartive addresses, say invoices@old-employer, when you want to mail invoices@new-employer, years after leaving the old employer due to a bad-autocomplete rule (this happend to me recently).
So far, I have documeneted how to delete the old addresses from the addressbook. This removes them from auto-complete. However, I ran some tests and found that if I mail one of the old addresses again, they come back in the auto-complete with there origional position in the list again. So, two initial questions
1) Does anyone know what rules the autocomplete uses. Is it based totally on frequency of mails with no factor for time. So, if I mailed invoices@old-company once am month for two years, I would have to mail invoices@new-company 25 times before that address came top?
2) can anyone suggest a way to edit a specific rule, so, not just remove the addresses of old company, but stop them coming top in the auto-complete for good
3) if 2 is not possible, perhaps a reset but deleting the contents of the rules file is possible.

Answer 1

Turn off the collection of outbound addresses if you do not want them added to the Collected address book. What you describe is exactly how it works.
The developers broke, in my opinion, the address search in version 31. It opened up the autocomple search to include too many choices and it pulls up the wrong items. I am staying at version 24.6 until they fix it.