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By responding at all, it’s probably just helping spammers warm up numbers, more than anything else.

So, counterintuitively, helping the spammers.

Spammers need to amass a strong baseline of “organic” received SMS responses in order to be unthrottled so that they can effectively spam.

Responding STOP will get the number blacklisted after a relatively few strikes.






In the US they can just spoof numbers.

I'm not sure if any of these numbers are actually spoofed. When I look them up they are always VOIP numbers.

Not sure how that works, but I think the message would have to be emitted from an approved dial peer? Or are you just talking about caller id spoofing?

I was talking about caller id spoofing. If there was another layer to it, I was unaware.



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