I don't really see this as SPAM. It's is annoying, but I would place it in the same classification as a credit card company, one that I hold a card from. sending me junk mail. Since they (Network solutions), have developed this mailing list from infomation you provided to them in registering domain(s).
They are entitled to contact you. You may, of course complain, and they (Network solutions), are of course are entitled to take no action.
Ron Johnson
According to the rules MAPS follows when dealing with other RBL candidates, if there is no reliable way to stop someone from sending you e-mail, then it makes no difference that they have some preexisting relationship with you. In other words it's the fact that they won't stop, rather than the fact that we have no ability to take our business elsewhere, that has qualified them for the RBL. Probably the 208.226.58.70/32 server, which handles only netsol and not internic business, will go on the MAPS RBL later today. We're trying to reach them by phone one last time.