Due to Yahoo and AOL's settings on their outgoing emails (including related domains like aim.com), they are not very compatible with making submissions to the list. Mail from Yahoo and AOL will have the from line changed to be the lists email address, with your "name" included. It is suggested, strongly for people who post regularly, to change their email address to something besides Yahoo or AOL. Please see Changing my email address for details about how to change your subscription to a new email address. I apologize to Yahoo and AOL users about this, there isn't much I can do at my end about this, this is basically what Yahoo and AOL are telling the world what they should do for their subscribers on mailing lists (Really what they are saying is that you, as their subscribers are not allowed to let any server but theirs send out mail for you).