Could you be more specific about what users are receiving emails that aren't supposed to and the other way around? Is that based on one of the filters, multiple, or all?
One shortcut that I can think of that might help is to use the unix timestamp natively for your comparisons. Example: UNIX_TIMESTAMP() - user_lastactivity is the difference in seconds between the two dates. Divide that by 86400 and you have your full days.
06-07-2011, 07:00 PM
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