let users disable spam filter
Your spam filter is worse than useless -- it's dangerous.
I'm a Pro subscriber. Your spam filter is filtering out business-critical emails and causing me to lose money. Losing certain emails would threaten the existence of my business. My Pro subscription should give me the power to control my own spam filter.
Yahoo used to have the option to bypass the spam filter (via custom filters), but you removed this option for some reason. Bring it back.
2nd
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