AOL is likely blocking you from sending messages to your contacts on their damn network, or to any other network, because you're either using an unidentified ISP and internet server for your messaging ventures, or you're using an
electronic messaging account which people have asked them to block! Plus, you could have violated their strict provisions on spam sending. But if you haven't done anything which would resemble direct marketing procedures, or just don't even know how and why spammers spam their damn way to riches, then I think you should stop complaining to the AOL people using your electronic messaging account! After all, aren't they already blocking your damn account from sending messages?! With this, you should call them and give them a piece of your damn mind, brother!