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Obviously perfect method doesn't exist. But sender must be aware of delivery failure, silently diverting messages from inbox is unacceptable.
by garaetjjte 6y ago
Obviously perfect method doesn't exist. But sender must be aware of delivery failure, silently diverting messages from inbox is unacceptable.
- brokenmachine 6y agoThe problem is that then it would turn into an arms race - the spammers would use that information to perform reconnaissance and learn what gets through and what doesn't.