The opposite really. Putting this shit on someone else's server increases the chances of it getting intercepted, at which point you can no longer hold the blackmail material over your victim because it's already been released, so what will you threaten them with? You gonna double release it?
Using Gmail instead of a personal server speaks to that as well.
The opposite really. Putting this shit on someone else's server increases the chances of it getting intercepted, at which point you can no longer hold the blackmail material over your victim because it's already been released, so what will you threaten them with? You gonna double release it?