Hi All, I run groups.io, an email groups hosting service, similar to Google Groups. Over the past couple of years, we've had several instances of the following behavior:
- Someone controlling several Yahoo/Hotmail/Gmail accounts will sign them up to mailing lists. Each address will sign up for 1-3 lists, via email. These are all confirmed opt-in. - Months later, they will forward the messages they've received from these lists, unmodified, to many (seemingly) random people, all at once What I'm trying to understand is what they're hoping to accomplish. I suppose it could be a straight up harassment campaign against us or the people they're forwarding the emails to. But I'm wondering if it's something different. Are they trying to somehow increase sending reputation for their email addresses, to increase their own spam email deliverability (and if so, how would that work)? Or something else? This is top of mind because it just happened again overnight. I have some spammer detection systems in place, but much of that depends on information gleaned from a web login. Thanks, Mark
_______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
