My email (& an associate) were placed into their system by an unknown vendor. When i removed myself from one email chain a second from another advertiser popped up.
Not wanting to chase this down forever i called company directly to remove my email from theri system completely, along with any other email addresses for my staff. They said they could not do this, that i would have to provide them with contact information for each staff member to remove their emails individually. And when asked who put our names into the system so i could phone them directly to stop it, they told me they would not tell me who is addind my staff emails to the spam lists... so you wont tell me who from here you've added, wont tell us who is adding us, wont take us all out without a ton of work.
Some ethics.
Avoid unless you want to piss all your clients off.